Hey Tim,
I’m having a similar issue with one particular project where I’m not able to use my preview function, so I’m basically having to animate by force scrubbing.
Oddly, I can’t use the “redo” function either. It remains greyed out.
When I start a new project preview and “redo” work fine. When I import the project I’m having issues with preview and “redo” both stop working. Deleted the project file from the new project and both features started working again.
Been working on this project for over a month and everything was working fine the first few weeks. I’m way too deep to try to start over.
Any help is greatly appreciated!!
Best,
Nick