Copilot CLI requires a restart after I've signed up for the Pro account: × Model call failed: "400 400 Bad Request\n"

### Describe the bug

See this:

It turns out that stopping and re-starting the copilot fixed this, but this shouldn't happen in the first place.

### Affected version

_No response_

### Steps to reproduce the behavior

_No response_

### Expected behavior

_No response_

### Additional context

_No response_