I’m having similar issues, I will build an entire scene, and when hitting test it seems to work fine. Hit done, and when I run it I get “could not complete, unexpected error“. It’s driving me nuts, and when it comes to hitting one of these errors, it causes everything in the scene to fail. I’m literally forced to go in and edit my scene and hit ‘test’ when I want to actually run it! Happening in multiple instances, and no clear reason why…