Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
Hey, recently using Developer: Restart extension host on cursor has caused the AI window to fail. You can type but every time you click upload there’s a brief loading icon then nothing and it appears as though you never clicked it.
Steps to Reproduce
To test this simply open the AI panel then do cmd + space >restart extension host then click the Developer: Restart extension host and try to use the AI panel to chat.
Operating System
MacOS
Current Cursor Version (Menu → About Cursor → Copy)
Version: 2.1.46 (Universal)
VSCode Version: 1.105.1
Commit: ab326d0767c02fb9847b342c43ea58275c4b1680
Date: 2025-12-02T03:59:29.283Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 24.6.0
Does this stop you from using Cursor
No - Cursor works, but with this issue
deanrie
(Dean Rie)
December 3, 2025, 9:16am
2
Hey, thanks for the report.
Can you check a couple of things as a temporary fix:
Run “Developer: Reload Window” or fully restart Cursor Cmd+Q - does the AI chat start sending again?
Does the bug repeat with extensions disabled? Launch from terminal: cursor --disable-extensions and repeat the steps.
And help with diagnostics:
Open Help > Toggle Developer Tools, reproduce the bug (after Restart Extension Host) and send errors from the Console tab.
Tell me if other AI inputs work after that (CMD+K / Inline Edit)?
If you can send a message at least once, copy the Request ID (in chat menu > Copy Request ID).
If it reproduces stably even without extensions - we’ll raise a bug for fix.
Run “Developer: Reload Window” or fully restart Cursor Cmd+Q - does the AI chat start sending again?
this works but is extremely annoying to do because it closes all of my terminals too.
Does the bug repeat with extensions disabled? Launch from terminal: cursor --disable-extensions and repeat the steps.
yes.
-Tell me if other AI inputs work after that (CMD+K / Inline Edit)?
They work
Errors from toggled dev tools