Constant issues with UI crashing on intellij

[bdavj]

Before submitting your bug report

• I've tried using the "Ask AI" feature on the Continue docs site to see if the docs have an answer
• I believe this is a bug. I'll try to join the Continue Discord for questions
• I'm not able to find an open issue that reports the same bug
• I've seen the troubleshooting guide on the Continue Docs

Relevant environment info

- OS: MacOS
- Continue version: 1.0.40EAP, 1.0.37, Just about every other version up to this.
- IDE version: 2025.2.1, but also various versions of 2024. Several people have experienced across a large variety of versions
- Model: Claude 4.0 sonnet, but doesn't seem to make a difference

Description

Continue plugin will randomly crash in the side pane when coming back to it or creating a new chat. Stays that way until intellij is restarted. Sometimes get IDE errors like the one attached (which may not be relevant). Nothing in core log. Happens frequently (a few times a day).

To reproduce

See above. Random, when coming back to Continue / new chat.

Log output

[info] Starting Continue core...
[2025-09-02T13:56:28] [info] Starting Continue core...
[2025-09-02T13:56:28] Setup
[2025-09-02T13:56:28] [binary] Core started
[2025-09-02T13:56:28] (node:70830) ExperimentalWarning: The Fetch API is an experimental feature. This feature could change at any time
(Use `continue-binary --trace-warnings ...` to show where the warning was created)
[2025-09-02T13:56:28] Failed to fetch favicon from https://mintcdn.com/continue-docs/Q7rtZZRFf0o0QPSv/_generated/favicon/apple-touch-icon.png?maxW=180&n=Q7rtZZRFf0o0QPSv&s=bef24c0753161798d56b40608b2849c5: TypeError: fetch failed
[2025-09-02T13:56:30]
[2025-09-03T16:13:32] nextEdit/deleteChain
[2025-09-03T16:13:32] nextEdit/deleteChain
[2025-09-03T16:14:03] deleteChain called from files/closed
[2025-09-03T16:14:03] deleteChain called from files/closed

(Currently 09-04 11:28, no lines since, continue crashed in sidebar)
----


Unhandled exception in Dispatchers.Main

com.intellij.openapi.diagnostic.RuntimeExceptionWithAttachments: Read access is allowed from inside read-action only (see Application.runReadAction()); If you access or modify model on EDT consider wrapping your code in WriteIntentReadAction ; see https://jb.gg/ij-platform-threading for details
Current thread: Thread[#43,AWT-EventQueue-0,6,main] 318086858 (EventQueue.isDispatchThread()=true)
SystemEventQueueThread: (same)
	at com.intellij.util.concurrency.ThreadingAssertions.createThreadAccessException(ThreadingAssertions.java:257)
	at com.intellij.util.concurrency.ThreadingAssertions.throwThreadAccessException(ThreadingAssertions.java:248)
	at com.intellij.util.concurrency.ThreadingAssertions.assertReadAccess(ThreadingAssertions.java:138)
	at com.intellij.openapi.editor.impl.EditorThreading.assertInteractionAllowed(EditorThreading.kt:30)
	at com.intellij.openapi.editor.impl.CaretImpl.getOffset(CaretImpl.java:661)
	at com.github.continuedev.continueintellijextension.listeners.ActiveHandlerManager$caretPositionChanged$1.invokeSuspend(ActiveHandlerManager.kt:115)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
	at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:225)
	at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:122)
	at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:43)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:781)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:728)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:750)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:595)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:488)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10$lambda$9(IdeEventQueue.kt:313)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:865)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10(IdeEventQueue.kt:312)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$3(IdeEventQueue.kt:974)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:110)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:974)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12(IdeEventQueue.kt:307)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:347)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)
	Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelled}@5f4de3c0, Dispatchers.Main]

[danielalmeidagoncalves]

Also suffer from this behavior with version 1.0.43 and Intelij IDEA 2025.2.1. Just updated continue to 1.0.44, lets see if it is fixed.

[bdavj]

@sestinj @tomasz-stefaniak This seems to be getting a lot worse across a fleet of IJ users. Is there anything we can provide to facilitate chasing down this issue?

[danielalmeidagoncalves]

I have the same idea as @bdavj. I use continue on both Intelij and VSCode and I can say that on VSCode it works like a breeze and never notice any issue. On the other way around on Intelij it has been quite some time since I have a good experience using the plugin... Usually what I do is having both IDEs open and on Intelij I only use autocompleter and then when I need chat I go to VSCode :)