Preview turns black when I add a rotation keyframe

[Mark Whitney]

You’ve an expression on Transform along with a Wiggle effect so one of those is “competing” & moving your layer out of view I’m guessing. Try disabling just one or the other to isolate the culprit. You might try a custom view to see where it’s getting moved to as a clue if it’s rotation or translation.

Also, you might try moving the wiggle effect below the transform effect to see if stacking order is a factor.

[Luiz carlos Carvalho]

Found out my RSMB plugin was in conflict with my Transform, probably a bug. Thank you anyway.