Hi guys,
I'm having the exact same problem. I am using an iMac 3.1 GHz intel core i5 with 8GB RAM. I'm doing CMD+drag audio scribbling, and that is where I'm finding an issue. Tons of error messages popping up, same as above. Never had this problem in CC 12, just in the latest version (CC 2014). RAM is filling up extremely fast.
I've tried purging, enabling multi-processing, allocating more RAM. Nothing seems to work. System will work for about 10 min doing audio scrubbing, and then it's Game Over. Hoping a fix will surface for this. I'll just "save as" a CC 12 version for now and hope that works.