diff --git a/matrix_puppeteer_line/portal.py b/matrix_puppeteer_line/portal.py
index d6cb8a9..3668b60 100644
--- a/matrix_puppeteer_line/portal.py
+++ b/matrix_puppeteer_line/portal.py
@@ -273,9 +273,12 @@ class Portal(DBPortal, BasePortal):
             if evt.is_outgoing and evt.receipt_count:
                 await self._handle_receipt(event_id, evt.receipt_count)
             msg = DBMessage(mxid=event_id, mx_room=self.mxid, mid=evt.id, chat_id=self.chat_id)
-            await msg.insert()
-            await self._send_delivery_receipt(event_id)
-            self.log.debug(f"Handled remote message {evt.id} -> {event_id}")
+            try:
+                await msg.insert()
+                await self._send_delivery_receipt(event_id)
+                self.log.debug(f"Handled remote message {evt.id} -> {event_id}")
+            except UniqueViolationError as e:
+                self.log.debug(f"Failed to handle remote message {evt.id} -> {event_id}: {e}")
 
     async def handle_remote_receipt(self, receipt: Receipt) -> None:
         msg = await DBMessage.get_by_mid(receipt.id)
diff --git a/puppet/example-config.json b/puppet/example-config.json
index 00020df..a0520b1 100644
--- a/puppet/example-config.json
+++ b/puppet/example-config.json
@@ -5,5 +5,6 @@
 	},
 	"profile_dir": "./profiles",
 	"url": "chrome-extension://<extension-uuid>/index.html",
-	"extension_dir": "./extension_files"
+	"extension_dir": "./extension_files",
+	"devtools": false
 }
diff --git a/puppet/src/contentscript.js b/puppet/src/contentscript.js
index a40c5ca..505c6c3 100644
--- a/puppet/src/contentscript.js
+++ b/puppet/src/contentscript.js
@@ -81,16 +81,20 @@ const ChatTypeEnum = Object.freeze({
 })
 
 class MautrixController {
-	constructor(ownID) {
+	constructor() {
 		this.chatListObserver = null
 		this.msgListObserver = null
 		this.receiptObserver = null
+
 		this.qrChangeObserver = null
 		this.qrAppearObserver = null
 		this.emailAppearObserver = null
 		this.pinAppearObserver = null
 		this.expiryObserver = null
 		this.ownID = null
+
+		this.ownMsgPromise = Promise.resolve(-1)
+		this._promiseOwnMsgReset()
 	}
 
 	setOwnID(ownID) {
@@ -253,14 +257,14 @@ class MautrixController {
 		) {
 			const img = messageElement.querySelector(".mdRGT07MsgImg > img")
 			if (img) {
-				let resolve
+				let imgResolve
 				// TODO Should reject on "#_chat_message_image_failure"
-				let observer = new MutationObserver((changes) => {
+				let observer = new MutationObserver(changes => {
 					for (const change of changes) {
 						if (this._isLoadedImageURL(change.target.src) && observer) {
 							observer.disconnect()
 							observer = null
-							resolve(change.target.src)
+							imgResolve(change.target.src)
 							return
 						}
 					}
@@ -274,8 +278,8 @@ class MautrixController {
 					messageData.image_url = img.src
 					observer.disconnect()
 				} else {
-					messageData.image_url = await new Promise((realResolve, reject) => {
-						resolve = realResolve
+					messageData.image_url = await new Promise(resolve => {
+						imgResolve = resolve
 						setTimeout(() => {
 							if (observer) {
 								observer.disconnect()
@@ -302,97 +306,42 @@ class MautrixController {
 	}
 
 
+	/**
+	 * Create and store a promise that resolves when a message written
+	 * by the user finishes getting sent.
+	 * Accepts selectors for elements that become visible once the message
+	 * has succeeded or failed to be sent.
+	 *
+	 * @param {int} timeoutLimitMillis - The maximum amount of time to wait for the message to be sent.
+	 * @param {str} successSelector - The selector for the element that indicates the message was sent.
+	 * @param {str} failureSelector - The selector for the element that indicates the message failed to be sent.
+	 */
 	promiseOwnMessage(timeoutLimitMillis, successSelector, failureSelector=null) {
-		let observer
-		let msgID = -1
-		let resolve
-		let reject
+		this.promiseOwnMsgSuccessSelector = successSelector
+		this.promiseOwnMsgFailureSelector = failureSelector
 
-		const resolveMessage = () => {
-			observer.disconnect()
-			observer = null
-			window.__mautrixReceiveMessageID(msgID)
-			resolve(msgID)
-		}
-
-		const rejectMessage = failureElement => {
-			observer.disconnect()
-			observer = null
-			reject(failureElement)
-		}
-
-		const changeCallback = (changes) => {
-			for (const change of changes) {
-				for (const addedNode of change.addedNodes) {
-					if (addedNode.classList.contains("mdRGT07Own")) {
-						const successElement = addedNode.querySelector(successSelector)
-						if (successElement) {
-							console.log("Found success element")
-							console.log(successElement)
-							msgID = +addedNode.getAttribute("data-local-id")
-							if (successElement.classList.contains("MdNonDisp")) {
-								console.log("Invisible success, wait")
-								observer.disconnect()
-								observer = new MutationObserver(getVisibleCallback(true))
-								observer.observe(successElement, { attributes: true, attributeFilter: ["class"] })
-							} else {
-								console.log("Already visible success")
-								resolveMessage()
-							}
-							return
-						} else if (failureSelector) {
-							const failureElement = addedNode.querySelector(failureSelector)
-							if (failureElement) {
-								console.log("Found failure element")
-								console.log(failureElement)
-								if (failureElement.classList.contains("MdNonDisp")) {
-									console.log("Invisible failure, wait")
-									observer.disconnect()
-									observer = new MutationObserver(getVisibleCallback(false))
-									observer.observe(successElement, { attributes: true, attributeFilter: ["class"] })
-								} else {
-									console.log("Already visible failure")
-									rejectMessage(failureElement)
-								}
-								return
-							}
-						}
-					}
-				}
-			}
-		}
-
-		const getVisibleCallback = isSuccess => {
-			return changes => {
-				for (const change of changes) {
-					if (!change.target.classList.contains("MdNonDisp")) {
-						console.log(`Waited for visible ${isSuccess ? "success" : "failure"}`)
-						console.log(change.target)
-						isSuccess ? resolveMessage() : rejectMessage(change.target)
-						return
-					}
-				}
-			}
-		}
-
-		observer = new MutationObserver(changeCallback)
-		observer.observe(
-			document.querySelector("#_chat_room_msg_list"),
-			{ childList: true })
-
-		return new Promise((realResolve, realReject) => {
-			resolve = realResolve
-			reject = realReject
+		this.ownMsgPromise = new Promise((resolve, reject) => {
+			this.promiseOwnMsgResolve = resolve
+			this.promiseOwnMsgReject = reject
 			setTimeout(() => {
 				if (observer) {
 					console.log("Timeout!")
-					observer.disconnect()
+					this._promiseOwnMsgReset()
 					reject()
 				}
 			}, timeoutLimitMillis)
 		})
 	}
 
+	/**
+	 * Wait for a user-sent message to finish getting sent.
+	 *
+	 * @return {Promise<int>} - The ID of the sent message.
+	 */
+	async waitForOwnMessage() {
+		return await this.ownMsgPromise
+	}
+
 	async _tryParseMessages(msgList, chatType) {
 		const messages = []
 		let refDate = null
@@ -403,6 +352,8 @@ class MautrixController {
 				// TODO :not(.MdNonDisp) to exclude not-yet-posted messages,
 				// 		but that is unlikely to be a problem here.
 				// 		Also, offscreen times may have .MdNonDisp on them
+				// TODO Explicitly look for the most recent date element,
+				//      as it might not have been one of the new items in msgList
 				const timeElement = child.querySelector("time")
 				if (timeElement) {
 					const messageDate = await this._tryParseDate(timeElement.innerText, refDate)
@@ -604,14 +555,14 @@ class MautrixController {
 				}
 				*/
 			} else if (change.target.tagName == "LI") {
-				if (!change.target.classList.contains("ExSelected")) {
+				if (change.target.classList.contains("ExSelected")) {
 					console.log("Not using chat list mutation response for currently-active chat")
 					continue
 				}
 				for (const node of change.addedNodes) {
 					const chat = this.parseChatListItem(node)
 					if (chat) {
-						console.debug("Changed chat list item:", chat)
+						console.log("Changed chat list item:", chat)
 						changedChatIDs.add(chat.id)
 					} else {
 						console.debug("Could not parse node as a chat list item:", node)
@@ -633,7 +584,12 @@ class MautrixController {
 	 */
 	addChatListObserver() {
 		this.removeChatListObserver()
-		this.chatListObserver = new MutationObserver(mutations => {
+		this.chatListObserver = new MutationObserver(async (mutations) => {
+			// Wait for pending sent messages to be resolved before responding to mutations
+			try {
+				await this.ownMsgPromise
+			} catch (e) {}
+
 			try {
 				this._observeChatListMutations(mutations)
 			} catch (err) {
@@ -739,15 +695,31 @@ class MautrixController {
 		const chatID = this.getCurrentChatID()
 		const chatType = this.getChatType(chatID)
 
-		this.msgListObserver = new MutationObserver(async (changes) => {
+		let orderedPromises = [Promise.resolve()]
+		this.msgListObserver = new MutationObserver(changes => {
+			let msgList = []
 			for (const change of changes) {
-				const msgList = Array.from(change.addedNodes).filter(
-					child => child.tagName == "DIV" && child.hasAttribute("data-local-id"))
-				msgList.sort((a,b) => a.getAttribute("data-local-id") - b.getAttribute("data-local-id"))
-				window.__mautrixReceiveMessages(chatID, await this._tryParseMessages(msgList, chatType))
+				change.addedNodes.forEach(child => {
+					if (child.tagName == "DIV" && child.hasAttribute("data-local-id")) {
+						msgList.push(child)
+					}
+				})
+			}
+			if (msgList.length == 0) {
+				return
+			}
+			msgList.sort((a,b) => a.getAttribute("data-local-id") - b.getAttribute("data-local-id"))
+			if (!this._observeOwnMessage(msgList)) {
+				let prevPromise = orderedPromises.shift()
+				orderedPromises.push(new Promise(resolve => prevPromise
+					.then(() => this._tryParseMessages(msgList, chatType))
+					.then(msgs => window.__mautrixReceiveMessages(chatID, msgs))
+					.then(() => resolve())
+				))
 			}
 		})
-		this.msgListObserver.observe(chat_room_msg_list,
+		this.msgListObserver.observe(
+			chat_room_msg_list,
 			{ childList: true })
 
 		console.debug("Started msg list observer")
@@ -773,6 +745,106 @@ class MautrixController {
 		console.debug("Started receipt observer")
 	}
 
+	_observeOwnMessage(msgList) {
+		if (!this.promiseOwnMsgSuccessSelector && !this.promiseOwnMsgFailureSelector) {
+			// Not waiting for a pending sent message
+			return false
+		}
+		if (this.visibleSuccessObserver || this.visibleFailureObserver) {
+			// Already found a element that we're waiting on becoming visible
+			return true
+		}
+
+		for (const ownMsg of msgList.filter(msg => msg.classList.contains("mdRGT07Own"))) {
+			const successElement =
+				this.promiseOwnMsgSuccessSelector &&
+				ownMsg.querySelector(this.promiseOwnMsgSuccessSelector)
+			if (successElement) {
+				if (successElement.classList.contains("MdNonDisp")) {
+					console.log("Invisible success, wait")
+					console.log(successElement)
+					const msgID = +ownMsg.getAttribute("data-local-id")
+					this.visibleSuccessObserver = new MutationObserver(
+						this._getOwnVisibleCallback(msgID))
+					this.visibleSuccessObserver.observe(
+						successElement,
+						{ attributes: true, attributeFilter: ["class"] })
+				} else {
+					console.debug("Already visible success, must not be it")
+					console.debug(successElement)
+				}
+			}
+
+			const failureElement =
+				this.promiseOwnMsgFailureSelector &&
+				ownMsg.querySelector(this.promiseOwnMsgFailureSelector)
+			if (failureElement) {
+				if (failureElement.classList.contains("MdNonDisp")) {
+					console.log("Invisible failure, wait")
+					console.log(failureElement)
+					this.visibleFailureObserver = new MutationObserver(
+						this._getOwnVisibleCallback())
+					this.visibleFailureObserver.observe(
+						failureElement,
+						{ attributes: true, attributeFilter: ["class"] })
+				} else {
+					console.debug("Already visible failure, must not be it")
+					console.log(failureElement)
+				}
+			}
+
+			if (this.visibleSuccessObserver || this.visibleFailureObserver) {
+				return true
+			}
+		}
+		return false
+	}
+
+	_getOwnVisibleCallback(msgID=null) {
+		const isSuccess = !!msgID
+		return changes => {
+			for (const change of changes) {
+				if (!change.target.classList.contains("MdNonDisp")) {
+					console.log(`Waited for visible ${isSuccess ? "success" : "failure"}`)
+					console.log(change.target)
+					isSuccess ? this._resolveOwnMessage(msgID) : this._rejectOwnMessage(change.target)
+					return
+				}
+			}
+		}
+	}
+
+	_resolveOwnMessage(msgID) {
+		const resolve = this.promiseOwnMsgResolve
+		this._promiseOwnMsgReset()
+
+		window.__mautrixReceiveMessageID(msgID).then(
+			() => resolve(msgID))
+	}
+
+	_rejectOwnMessage(failureElement) {
+		const reject = this.promiseOwnMsgReject
+		this._promiseOwnMsgReset()
+
+		reject(failureElement)
+	}
+
+	_promiseOwnMsgReset() {
+		this.promiseOwnMsgSuccessSelector = null
+		this.promiseOwnMsgFailureSelector = null
+		this.promiseOwnMsgResolve = null
+		this.promiseOwnMsgReject = null
+
+		if (this.visibleSuccessObserver) {
+			this.visibleSuccessObserver.disconnect()
+		}
+		this.visibleSuccessObserver = null
+		if (this.visibleFailureObserver) {
+			this.visibleFailureObserver.disconnect()
+		}
+		this.visibleFailureObserver = null
+	}
+
 	removeMsgListObserver() {
 		let result = false
 		if (this.msgListObserver !== null) {
diff --git a/puppet/src/main.js b/puppet/src/main.js
index 1955691..81f8b9d 100644
--- a/puppet/src/main.js
+++ b/puppet/src/main.js
@@ -36,7 +36,7 @@ MessagesPuppeteer.noSandbox = args["--no-sandbox"]
 console.log("[Main] Reading config from", configPath)
 const config = JSON.parse(fs.readFileSync(configPath).toString())
 MessagesPuppeteer.profileDir = config.profile_dir || MessagesPuppeteer.profileDir
-MessagesPuppeteer.disableDebug = !!config.disable_debug
+MessagesPuppeteer.devtools = config.devtools || false
 MessagesPuppeteer.url = config.url
 MessagesPuppeteer.extensionDir = config.extension_dir || MessagesPuppeteer.extensionDir
 
diff --git a/puppet/src/puppet.js b/puppet/src/puppet.js
index 2dcdae5..60646aa 100644
--- a/puppet/src/puppet.js
+++ b/puppet/src/puppet.js
@@ -25,7 +25,7 @@ import { sleep } from "./util.js"
 export default class MessagesPuppeteer {
 	static profileDir = "./profiles"
 	static executablePath = undefined
-	static disableDebug = false
+	static devtools = false
 	static noSandbox = false
 	static viewport = { width: 960, height: 880 }
 	static url = undefined
@@ -65,17 +65,22 @@ export default class MessagesPuppeteer {
 	async start() {
 		this.log("Launching browser")
 
-		const extensionArgs = [
+		let extensionArgs = [
 			`--disable-extensions-except=${MessagesPuppeteer.extensionDir}`,
 			`--load-extension=${MessagesPuppeteer.extensionDir}`
 		]
+		if (MessagesPuppeteer.noSandbox) {
+			extensionArgs = extensionArgs.concat(`--no-sandbox`)
+		}
 
 		this.browser = await puppeteer.launch({
 			executablePath: MessagesPuppeteer.executablePath,
 			userDataDir: this.profilePath,
-			args: MessagesPuppeteer.noSandbox ? extensionArgs.concat("--no-sandbox") : extensionArgs,
+			args: extensionArgs,
 			headless: false, // Needed to load extensions
 			defaultViewport: MessagesPuppeteer.viewport,
+			devtools: MessagesPuppeteer.devtools,
+			timeout: 0,
 		})
 		this.log("Opening new tab")
 		const pages = await this.browser.pages()
@@ -337,8 +342,8 @@ export default class MessagesPuppeteer {
 	 * @return {Promise<[ChatListInfo]>} - List of chat IDs in order of most recent message.
 	 */
 	async getRecentChats() {
-		return await this.page.evaluate(
-			() => window.__mautrixController.parseChatList())
+		return await this.taskQueue.push(() =>
+			this.page.evaluate(() => window.__mautrixController.parseChatList()))
 	}
 
 	/**
@@ -368,21 +373,6 @@ export default class MessagesPuppeteer {
 		return { id: await this.taskQueue.push(() => this._sendMessageUnsafe(chatID, text)) }
 	}
 
-	_filterMessages(chatID, messages) {
-		const minID = this.mostRecentMessages.get(chatID) || 0
-		const filtered_messages = messages.filter(msg => msg.id > minID && !this.sentMessageIDs.has(msg.id))
-
-		let range = 0
-		if (filtered_messages.length > 0) {
-			const newFirstID = filtered_messages[0].id
-			const newLastID = filtered_messages[filtered_messages.length - 1].id
-			this.mostRecentMessages.set(chatID, newLastID)
-			range = newFirstID === newLastID ? newFirstID : `${newFirstID}-${newLastID}`
-		}
-		this.log(`Loaded ${messages.length} messages in ${chatID}: got ${range} newer than ${minID}`)
-		return filtered_messages
-	}
-
 	/**
 	 * Get messages in a chat.
 	 *
@@ -390,7 +380,7 @@ export default class MessagesPuppeteer {
 	 * @return {Promise<[MessageData]>} - The messages visible in the chat.
 	 */
 	async getMessages(chatID) {
-		return this.taskQueue.push(async () => {
+		return await this.taskQueue.push(async () => {
 			const messages = await this._getMessagesUnsafe(chatID)
 			if (messages.length > 0) {
 				for (const message of messages) {
@@ -420,41 +410,6 @@ export default class MessagesPuppeteer {
 		return { id: await this.taskQueue.push(() => this._sendFileUnsafe(chatID, filePath)) }
 	}
 
-	async _sendFileUnsafe(chatID, filePath) {
-		await this._switchChat(chatID)
-		const promise = this.page.evaluate(
-			() => window.__mautrixController.promiseOwnMessage(
-				10000, // Use longer timeout for file uploads
-				"#_chat_message_success_menu",
-				"#_chat_message_fail_menu"))
-
-		try {
-			this.log(`About to ask for file chooser in ${chatID}`)
-			const [fileChooser] = await Promise.all([
-				this.page.waitForFileChooser(),
-				this.page.click("#_chat_room_plus_btn")
-			])
-			this.log(`About to upload ${filePath}`)
-			await fileChooser.accept([filePath])
-		} catch (e) {
-			this.log(`Failed to upload file to ${chatID}`)
-			return -1
-		}
-
-		// TODO Commonize with text message sending
-		try {
-			this.log("Waiting for file to be sent")
-			const id = await promise
-			this.log(`Successfully sent file in message ${id} to ${chatID}`)
-			return id
-		} catch (e) {
-			this.error(`Error sending file to ${chatID}`)
-			// TODO Figure out why e is undefined...
-			//this.error(e)
-			return -1
-		}
-	}
-
 	async startObserving() {
 		this.log("Adding observers")
 		await this.page.evaluate(
@@ -521,7 +476,7 @@ export default class MessagesPuppeteer {
 	}
 
 	// TODO Commonize
-	async getParticipantList() {
+	async _getParticipantList() {
 		await this._showParticipantList()
 		return await this.page.$("#_chat_detail_area > .mdRGT02Info ul.mdRGT13Ul")
 	}
@@ -532,9 +487,9 @@ export default class MessagesPuppeteer {
 		if (!participantList) {
 			this.log("Participant list hidden, so clicking chat header to show it")
 			await this.page.click("#_chat_header_area > .mdRGT04Link")
-			participantList = await this.page.waitForSelector(selector)
+			// Use no timeout since the browser itself is using this
+			await this.page.waitForSelector(selector, {timeout: 0})
 		}
-		//return participantList
 	}
 
 	async _getChatInfoUnsafe(chatID) {
@@ -561,7 +516,7 @@ export default class MessagesPuppeteer {
 			this.log("Found multi-user chat, so clicking chat header to get participants")
 			// TODO This will mark the chat as "read"!
 			await this._switchChat(chatID)
-			const participantList = await this.getParticipantList()
+			const participantList = await this._getParticipantList()
 			// TODO Is a group not actually created until a message is sent(?)
 			// 		If so, maybe don't create a portal until there is a message.
 			participants = await participantList.evaluate(
@@ -591,7 +546,7 @@ export default class MessagesPuppeteer {
 
 	async _sendMessageUnsafe(chatID, text) {
 		await this._switchChat(chatID)
-		const promise = this.page.evaluate(
+		await this.page.evaluate(
 			() => window.__mautrixController.promiseOwnMessage(5000, "time"))
 
 		const input = await this.page.$("#_chat_room_input")
@@ -599,14 +554,45 @@ export default class MessagesPuppeteer {
 		await input.type(text)
 		await input.press("Enter")
 
+		return await this._waitForSentMessage(chatID)
+	}
+
+	async _sendFileUnsafe(chatID, filePath) {
+		await this._switchChat(chatID)
+		await this.page.evaluate(
+			() => window.__mautrixController.promiseOwnMessage(
+				10000, // Use longer timeout for file uploads
+				"#_chat_message_success_menu",
+				"#_chat_message_fail_menu"))
+
+		try {
+			this.log(`About to ask for file chooser in ${chatID}`)
+			const [fileChooser] = await Promise.all([
+				this.page.waitForFileChooser(),
+				this.page.click("#_chat_room_plus_btn")
+			])
+			this.log(`About to upload ${filePath}`)
+			await fileChooser.accept([filePath])
+		} catch (e) {
+			this.log(`Failed to upload file to ${chatID}`)
+			return -1
+		}
+
+		return await this._waitForSentMessage(chatID)
+	}
+
+	async _waitForSentMessage(chatID) {
 		try {
 			this.log("Waiting for message to be sent")
-			const id = await promise
+			const id = await this.page.evaluate(
+				() => window.__mautrixController.waitForOwnMessage())
 			this.log(`Successfully sent message ${id} to ${chatID}`)
 			return id
 		} catch (e) {
 			// TODO Catch if something other than a timeout
 			this.error(`Timed out sending message to ${chatID}`)
+			// TODO Figure out why e is undefined...
+			//this.error(e)
 			return -1
 		}
 	}
@@ -636,6 +622,20 @@ export default class MessagesPuppeteer {
 		return this._filterMessages(chatID, messages)
 	}
 
+	_filterMessages(chatID, messages) {
+		const minID = this.mostRecentMessages.get(chatID) || 0
+		const filtered_messages = messages.filter(msg => msg.id > minID && !this.sentMessageIDs.has(msg.id))
+
+		if (filtered_messages.length > 0) {
+			const newFirstID = filtered_messages[0].id
+			const newLastID = filtered_messages[filtered_messages.length - 1].id
+			this.mostRecentMessages.set(chatID, newLastID)
+			const range = newFirstID === newLastID ? newFirstID : `${newFirstID}-${newLastID}`
+			this.log(`Loaded ${messages.length} messages in ${chatID}, got ${filtered_messages.length} newer than ${minID} (${range})`)
+		}
+		return filtered_messages
+	}
+
 	async _processChatListChangeUnsafe(chatID) {
 		this.updatedChats.delete(chatID)
 		this.log("Processing change to", chatID)
@@ -669,16 +669,29 @@ export default class MessagesPuppeteer {
 
 	_receiveReceiptDirectLatest(chat_id, receipt_id) {
 		this.log(`Received read receipt ${receipt_id} for chat ${chat_id}`)
-		this.taskQueue.push(() => this.client.sendReceipt({chat_id: chat_id, id: receipt_id}))
-			.catch(err => this.error("Error handling read receipt changes:", err))
+		if (this.client) {
+			this.client.sendReceipt({chat_id: chat_id, id: receipt_id})
+				.catch(err => this.error("Error handling read receipt:", err))
+		} else {
+			this.log("No client connected, not sending receipts")
+		}
 	}
 
-	_receiveReceiptMulti(chat_id, receipts) {
+	async _receiveReceiptMulti(chat_id, receipts) {
+		// Use async to ensure that receipts are sent in order
 		this.log(`Received bulk read receipts for chat ${chat_id}:`, receipts)
-		for (const receipt of receipts) {
-			receipt.chat_id = chat_id
-			this.taskQueue.push(() => this.client.sendReceipt(receipt))
-				.catch(err => this.error("Error handling read receipt changes:", err))
+		if (this.client) {
+			this.client.sendReceipt()
+			for (const receipt of receipts) {
+				receipt.chat_id = chat_id
+				try {
+					await this.client.sendReceipt(receipt)
+				} catch(err) {
+					this.error("Error handling read receipt:", err)
+				}
+			}
+		} else {
+			this.log("No client connected, not sending receipts")
 		}
 	}
 
@@ -730,6 +743,7 @@ export default class MessagesPuppeteer {
 
 	async _receiveExpiry(button) {
 		this.log("Something expired, clicking OK button to continue")
-		await this.page.click(button)
+		this.page.click(button).catch(err =>
+			this.error("Failed to dismiss expiry dialog:", err))
 	}
 }