Hey, thanks for the report. This is a known issue with version 3.0.13 on macOS Tahoe. The extension host crashes, which breaks everything: source control, terminal, chat, and extensions.
The only working workaround right now is to roll back to 2.6.22. A few users confirmed this fixes it. More details in this thread: Cursor last update freeze on macOS
The team is aware. There’s no ETA for a fix yet, but your report, especially about two different Macs where reinstall helped on one but not the other, helps with diagnosing it.
Let me know if rolling back to 2.6.22 helps.