Visual Elements unable to gain focus after taking certain actions

I’m having an issue with overlay and editor tool fields losing focus where, after taking certain actions (‘F’ to focus, or submitting a change with ‘tab’ or ‘enter’), all items thereafter have focus stolen - I can’t even open the Overlay menu without it immediately closing.

In the debugger, clicking a float field when things are working:
image

In the debugger, after getting into this state when things aren’t working:

I’m unable to reproduce it in using the same or different versions of the editor in other projects, so I’m assuming it’s a particular preference, setting, or a plugin that’s particular to this project.