Focus is wrong after window activation

[tom-seddon]

This always happens when I'm in the middle of something else - the Dear ImGui keyboard focus is on the wrong panel after switching window focus back to b2 after editing in the editor. I have to click in the emulator panel to type in the emulated BBC B.

[tom-seddon]

Also noted after using the native file selector.

1. click ..., then File... in Configs dialog
2. select file
3. focus apparently returns to b2 window again...
4. click ...

Nothing happens! But a second click does work.

There's no visual indication that it is in this state, whatever it is. Is this something Dear ImGui is doing, to avoid misclicks? Or is b2 handling focus wrongly?