Constant Crashing, Going to Older Cubase Ineffective

Hi,

I’m working on a Mac Pro w/ 64 GB of ram and Mavericks. Recently upgraded to Cubase 8 and have been beset with constant crashing after about 20-30 minutes of work. Going back to older Cubase versions does not fix the problem and I will beachball on every save.

It’s become unworkable at this point and work is suffering tremendously. Any insight would be helpful. this was the crash error from console if it is any help:

6/8/15 7:14:49.276 PM com.apple.launchd.peruser.501[195]: (com.steinberg.cubase.104928[2089]) Job appears to have crashed: Segmentation fault: 11

6/9/15 11:27:08.141 AM com.apple.launchd.peruser.501[183]: (com.steinberg.cubase.104928[484]) Job appears to have crashed: Segmentation fault: 11

Thanks!

Crashed again:

6/9/15 12:48:15.293 PM com.apple.launchd.peruser.501[183]: (com.steinberg.cubase.104928[751]) Job appears to have crashed: Segmentation fault: 11