Yeah, it happens to me as well.
You said that it doesn’t just happen in Vital, does Helm do the same thing? IZotope plugins do this as well. For me at least.
It is definitely something in the DAW, because the standalone version works fine for me.
I was also wondering, is the UI (I think that is the term) off scale, but the clickable area not?
edit: re-scaling it does not work
I am using Tracktion Waveform.
It was happening to me in the stand-alone on Win7. I finally upgraded to 10 and this no longer happens.