ZBrushCentral

Zbrush 4R8 P2

Hi everyone, I just upgraded to the latest patch and have had redraw issues, seems to be when I am working with live boolean. Also crashed twice. I worked with 4r8P1 without issue for weeks. Any suggestions, advice or similar problems?
Thanks,
Q

I am still having crashing issues as well as the popup that says Sorry, the disk space is critically low. Please clear more disk space …

Checked my space and I have 4 gig of free space.

But it just keeps looping and I have to force quit. Perhaps I should do a fresh install. Anybody with similar experience or solutions I would appreciate your thoughts.