After upgrade on mac, icon dances briefly but UI won't launch

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1

I tried to upgrade latest cursor. Now UI won’t launch

2

Hi there!

We detected that this may be a bug report, so we’ve moved your post to the Bug Reports category.

To help us investigate and fix this faster, could you edit your original post to include the details from the template below?

Bug Report Template - Click to expand

Where does the bug appear (feature/product)?

  • Cursor IDE
  • Cursor CLI
  • Background Agent (GitHub, Slack, Web, Linear)
  • BugBot
  • Somewhere else…

Describe the Bug
A clear and concise description of what the bug is.

Steps to Reproduce
How can you reproduce this bug? We have a much better chance at fixing issues if we can reproduce them!

  1. …
  2. …
  3. …

Expected Behavior
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Screenshots / Screen Recordings
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Operating System

  • Windows 10/11
  • MacOS
  • Linux

Version Information

  • For Cursor IDE: Menu → About Cursor → Copy
  • For Cursor CLI: Run agent about in your terminal
IDE:
Version: 2.xx.x
VSCode Version: 1.105.1
Commit: ......

CLI:
CLI Version 2026.01.17-d239e66

For AI issues: which model did you use?
Model name (e.g., Sonnet 4, Tab…)

For AI issues: add Request ID with privacy disabled
Request ID: f9a7046a-279b-47e5-ab48-6e8dc12daba1
For Background Agent issues, also post the ID: bc-…

Additional Information
Add any other context about the problem here.

Does this stop you from using Cursor?

  • Yes - Cursor is unusable
  • Sometimes - I can sometimes use Cursor
  • No - Cursor works, but with this issue

The more details you provide, the easier it is for us to reproduce and fix the issue. Thanks!

4

Hey, thanks for the report. I’ll need a bit more info to troubleshoot:

  1. Which Cursor version are you on? You can check in the Applications folder. Right-click Cursor → Get Info
  2. Which macOS version? System Settings → General → About
  3. What were you on before the upgrade? Which version was working fine?

In the meantime, please try a clean reinstall:

Uninstall:

  1. Quit Cursor if it’s running with Cmd+Q
  2. Drag Cursor.app from Applications to Trash
  3. Delete settings and cache:
rm -rf ~/.cursor
rm -rf ~/Library/Application\ Support/Cursor
rm -rf ~/Library/Caches/Cursor
rm -rf ~/Library/Saved\ Application\ State/com.cursor.*

Install:

  1. Download the latest version from Download · Cursor
  2. Drag it into Applications
  3. Launch it

If the issue still happens after a clean install, let me know. Also check Console.app (you can find it via Spotlight) right when you launch Cursor. There may be errors there that can help us figure out what’s going on.

5

Thank you.

I’m running Mac Sequoia 15.6

I tried the clean install steps. Downloaded latest. Still same issue.

Icon dances after clicking but UI is not launching.

I see nothing in console.

I don’t know which version of cursor was there before