Pyrefly locks Neovim after type checking is complete.

Use Pyrefly in Neovim via any method.
In another terminal open top or equivalent
Verify that Neovim has started a Pyrefly subprocess.
The type check will run and you should see a spike in CPU usage for pyrefly.
Navigate around the code base to a file with an error - within a few seconds the UI will freeze for a few seconds.
Sometimes the UI will hang unrecoverable.

You can do LspRestart pyrefly repeatedly until you hit problem 6.

This seems specific to the Pyrefly LSP. "Basedpyright" reports more extensive errors, but does not lock the UI.

No response

Using LSP mode via nvim-lspconfig

Seeing this as well in VS Code.

Sorry this somehow slipped by - could you please share a bit more info about what Pyrefly version you're on & what projects you're checking?

I'm curious to know if this still repros. We did ship a fix to reduce indexing time & improve perf in recent weeks, not sure if that fixed it.

Closing due to lack of repro

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