Cannot create `Opacity` or `Visibility` animations after loading state.
Steps to reproduce:
- Start ParaView, create
- Save state as
Animation Viewcreate a new animation track for Sphere:Opacity. Hit
Playusing the VCR controls. <--- this should work as expected; you'll see the sphere go from opacity 0 to 1.
- Restart ParaView and load
- Now try to create a animation (similar to Step 3). <--- you won't be able to add a track for Opacity; this is a bug!
This an easily testable symptom of #16862 (closed)