Hallo. Actually this has been a problem for years. I never bothered reporting it as it was more of an inconvenience than catastrophic…
Very often I’m working in the Interactive Viewport - then when I’m happy with the result I press Render To Picture Viewer without first aborting the Initeractve Viewport. This causes C4D to freeze up and I need to quit from the task manager.
It happens frequently but not all the time. Doesn’t seem to be file specific.

