I had the same problem yesterday afternoon, but with slate and ozone plugins. It just crashed completely, right? just closed the whole session and some stuff within ozone 8 was also lost.
Hi Jamie, I heard something back.
At the moment, Evan don't know why it occurs. Are you using 64 Bit versions of your Plugins? I had exactly a similar problem when I was using Ableton Live, it just shut down. There, I updated to 64 Bit and it worked out. They said it was because there wasn't enough memory left or something (i'm not a programmer...).
Maybe something similar is the problem here...?
James have you updated to the new version, how is it now?