ZBrushCentral

ZBRUSH glitching out, yet again.

So while in ZBRUSH working on a project with layers, I was adjusting the layers and because I hit a wrong key ZBRUSH now keeps popping up the message box “Mesh has polypaint layers, etc, etc” and no matter what I do, i.e click, it just keeps popping up thus not allowing me to do anything else, like save. I need to save this work rather than lose two+ hours, is there anything I can do?

EDIT: Fixed by clicking off screen a few hundred times.