Probe screen v2 - malfunction?

It looks like it supports incremental jogging, which might be safer:
github.com/verser-git/probe_screen_v2/bl...probe_screen.py#L360

My guess would be that for some reason the button-release events are not calling the button-release routine.

Though it might be nothing to do with probe-screen directly at all. Do the keys you mention also jog in the UI you are using _without_ probe-screen?

Yes they also jog w/o probe screen. But then the axis stop when I release the button. Only in probe screen the axis don't stop.

This sounds like a problem with event handling, then. Probe-screen might be passing-through key-press events but not key-release events.

Do you see the same issue with probe-screen-ng? (nothing that probe-screen-v2 seems to be abandoned)

You could even try this one: github.com/andypugh/probe-screen-ng

But these might have the same problem, I know that I have not tried to specifically address the problem described.