[BUG] Browser pane crashes GPU process and exits the app on Windows — regression in desktop 1.40609.1
Status Fixed / completed
Maintainer reply None cached
Activity 0 comments · opened Sep 1, 2026 · closed Sep 15, 2026
Preflight Checklist
- [x] I have searched existing issues and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code
What's Wrong?
On Claude desktop 1.40609.1 (Windows, MSIX/Store install), opening the in-app
Browser pane crashes the Electron GPU process ~5-6 seconds later and takes the whole
app down. It reproduced 3 out of 3 times on 1.40609.1 and 0 out of 3 times on
1.40609.0. Each crash killed an active Claude Code session mid-turn.
What Should Happen?
Claude - Fable 5.1, new windows desktop should not crash.
Error Messages/Logs
See attached error report.Steps to Reproduce
- Run Claude desktop 1.40609.1 on Windows.
- In a Claude Code session, cause the in-app Browser pane to open — any of
Claude_Browser__preview_start / navigate / browser_batch. The log records
[Preview] Created browser preview.
- Within ~5-6 seconds the GPU process crashes and the app exits.
Claude Model
Other
Is this a regression?
Yes, this worked in a previous version
Last Working Version
1.40609.0 (no crash)
Claude Code Version
1.40609.1 (crashes)
Platform
Anthropic API
Operating System
Windows
Terminal/Shell
PowerShell