Can't alt/opt click to split on external monitor (video included)

I cannot click to split using the alt/opt modifier on the second monitor which runs my main windows. Video here:

It’s unfortunate, there are other operations that do not work properly as well. Like, cmd+click to add to selection.

I think something to do with Cubase 13.0.30, because the last version worked fine.

Is it GUI related?


Please, link with your other issues.