Since there were crashes, were there any crash dumps created? Did Fault Reporter appear and did you report them?
We built that into the app to help stability continuously improve. However, if it isn't reported, we can't act on it except by trying to blindly fix something we might think is going on based on descriptions. Much better to have the actual crash dump since it will usually point to where the crash occurred.
Cool to do something of that scale. SONAR can definitely cut it, we have guys that do scoring using template projects with 300+ tracks and many instances of various synths for orchestral libraries, etc. in order to cover full orchestrations. Used to have to run multiple machines to do things of that scale, now it can be done on one box, good times.
Thanks!
Keith