I have the same Issue with the latest MASSIVE as well.
Same blank space.
I also have a Large lightly shaded square appearing beside the MASSIVE popup window that makes everything underneath it unclickable.
Maximizing the Cpro8 project window will make the lightly shaded area disappear temporarily. But when I click Browser or Attributes in MASSIVE the shaded area returns.
Try moving your Absynth and see if you can see a lightly shaded area about the same size as the window anywhere on your screen. Let me know what you find!
I tried but I don’t seem to have the problem your talking about. Oddly enough, I tried opening MASSIVE to see if I have the same kind of problem but it looks like everything is fine with Massive, tabs and dropdown menus look fine. I can’t confirm though because I only did a quick test. I will keep you in touch.
Solved the shaded box problem…
I’ve reinstalled MASSIVE with a fresh download from my N.I. account and the shaded area is gone.
The GUI whitespace issue like the one you’re experiencing with Absynth is still there.