Where does the bug appear (feature/product)? Cursor IDE Describe the Bug When reopening Cursor with a previous session that includes Claude Code tabs (even just one), the entire UI gets stuck in a loading state. The editor does not load properly Claude tabs show “Waiting for extension host” indef…

Same issue, infinite loading of the extension on startup

Can’t believe this bug has been around for months in an AI editor.

Same issue here. Really annoying. I can only start using again cursor if a do a wipe of the workspace folder in /application Support/Cursor/User

I have the same issue and driving me crazy, same symptons as prviously reported. I really hope this get fixed soon, started looking at moving to Zed.

Switched to VScode for now, it doesn’t have this issue.

Same here. Windows 10 Cursor 3.2.11 Claude Extension 2.1.120

same here when opening claude general settings

Same issue, Cursor 3.2.16, macOS Apple Silicon. Lost most of a workday to this before finding the thread. One workaround I haven’t seen mentioned: For me, I didn’t have to delete state.vscdb or wipe workspace storage. While Cursor is hung, you can still click on the open Claude Code tabs and close …

Bump because this issue is still unresolved !

Claude Code tabs cause Cursor to freeze on startup (stuck loading)

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yorkable (K3WLD00D) April 29, 2026, 3:16am 18

This bug is harshin my vibe, bro

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Claude Code tabs cause Cursor to freeze on startup (stuck loading)

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