[Regression][macOS][2.6.14] Single workspace freezes on open when `composer.composerData` exists; same DB works in 2.4.37

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Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Cursor 2.6.14 has a regression with one workspace on macOS. The workspace freezes and becomes “Not Responding” when composer.composerData is present in that workspace’s workspaceStorage/…/state.vscdb. Other workspaces on the same machine work normally. I verified the database itself is fine, and I isolated the issue to this single key: when the key is removed, the workspace opens normally; when it is restored, the workspace freezes again. The same workspace data works correctly in Cursor 2.4.37, so this looks like a 2.6.x workspace/chat restore bug rather than data corruption.

Current workaround: either downgrade to Cursor 2.4.37, which restores the workspace and chat history normally, or delete composer.composerData from the affected workspace database. Deleting the key makes the workspace usable again, but the composer/chat history is no longer visible in the UI.

Steps to Reproduce

No clear way to reproduce

Operating System

MacOS

Version Information

  • Cursor version: 2.6.14
    7 - OS: macOS Darwin 25.3.0 (arm64)

Does this stop you from using Cursor

Yes - Cursor is unusable

5

Hey @Zihan_Li!

Thanks for reporting this.

If I opened up a Private Message with you, would you be able to share that .vscdb so that our team can take a closer look as to why it’s causing crashes?

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