Jack-in prompt never showing on some Windows machines

[PEZ]

On my Virtual Box Windows machine, jack-in doesn't work since we added the Live Share changes. The cause is that the way we use vscode.workspace.fs.stat(uri) is not the way it is recommended by the VS Code team.

This doesn't seem to affect non-Windows users, and also I see no reports of it causing problems to any Windows users either. Except me then.

The code where this is happening is fundamental, so when it hits it will cause a lot of things in Calva to stop working.