Thanks guys-
Mark — Every version of Motion we’ve used since 2009, including the most recent update!
Don –Thanks for the heads up. It does seem like project file corruption, but in our case it is frequently so bad that copying layers no longer works, and simply causes a crash.
Admittedly we do a *ton* of complicated 3D stuff in Motion, and the project files get large quickly. This is no excuse for instability at a fundamental level though, but it may explain why we see it more often than others do. As a result, we compartmentalize across multiple project files whenever possible to minimize bloat, and are nearly OCD in our backup habits.