Hello,
please, see this old topic: Computer für Audioanwendungen - WaveLab - Steinberg Forums
These are also related to what you are seeing: Steinberg Forums and Steinberg Forums
We later confirmed it occurs with slower / less optimised (from a DAW perspective, that is…) GPU driver revisions and less than optimal thread synchronisation (where applicable). It is very likely that this happens with a specific GUI framework, but I’ve never seen a specific confirmation.
Hope this helps