Cursor-agent CLI crashes when typing too fast

Support Bug Reports
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1

Where does the bug appear (feature/product)?

Cursor CLI

Describe the Bug

This bug was also reported in Cursor-agent CLI console input gets progressively more garbled the longer the lines you type in get - #12 by Chris_Drake but it was closed for no reason.

Anyway, if you type fast enough in cursor-agent, or by, say, holding down backspace, the app crashes.

 - Oe (/home/danlu/.local/share/cursor-agent/versions/2026.03.11-6dfa30c/96.index.js:48:521547)
 - Ne (/home/danlu/.local/share/cursor-agent/versions/2026.03.11-6dfa30c/96.index.js:48:521072)
 - cn (/home/danlu/.local/share/cursor-agent/versions/2026.03.11-6dfa30c/96.index.js:48:536961)
 - un (/home/danlu/.local/share/cursor-agent/versions/2026.03.11-6dfa30c/96.index.js:48:536573)
 - onCursorInfoChange (/home/danlu/.local/share/cursor-agent/versions/2026.03.11-6dfa30c/434.index.js:1:317273)
 -  (/home/danlu/.local/share/cursor-agent/versions/2026.03.11-6dfa30c/678.index.js:1:10386)
 - Ar (/home/danlu/.local/share/cursor-agent/versions/2026.03.11-6dfa30c/96.index.js:48:564839)
 - Hr (/home/danlu/.local/share/cursor-agent/versions/2026.03.11-6dfa30c/96.index.js:48:576620)
 - Ur (/home/danlu/.local/share/cursor-agent/versions/2026.03.11-6dfa30c/96.index.js:48:576504)
 - Hr (/home/danlu/.local/share/cursor-agent/versions/2026.03.11-6dfa30c/96.index.js:48:576665)

Error: Minified React error #185; visit https://react.dev/errors/185 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.

Steps to Reproduce

  1. Open cursor-agent
  2. Type really fast

Expected Behavior

The app should not crash.

Screenshots / Screen Recordings

cursorcrash.png
cursorcrash.png1920Ă—1069 75 KB

Operating System

Linux

Version Information

About Cursor CLI

CLI Version 2026.03.20-44cb435
Model Opus 4.6 1M Thinking
OS linux (x64)
Terminal alacritty
Shell bash
User Email [email protected]

Additional Information

I lost my extremely complex prompt that I spent half an hour typing. I’m really upset.

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

5

Also, keep in mind that “type really fast” Might be copy and paste in text buffers or text to speech narration/automation…
either way - needs to not crash!

1 Like
7

Hi Dan,

Thanks for reporting and providing the helpful screenshot and stack trace. There is a clear gap here. We have a similar internal bug report on this (different from the garbled input forum post). We will follow up when we have an update on this!

Thank you!

Kevin

Cursor Support

8

Thank you, this is a great point.