Recover after MemoryStream error.

I received the error:

/Users/jam/Desktop/MemoryStream Unity Error.tiff

Found out that it was caused by a prefab that I made that contained a
couple of timelines. To be seen if this problem has been corrected
already in a more recent release of the eVRS timeline package.
Created prefabs for Tracking and Grasping.

Hopefully this will allow me to share code between scenes.
3D translation and rotation for simulated tracking.
Using prefabs in Forced Choice

Used Motion Tracking and Visual Conflict prefabs that were created in
Grasping in the Forced Choice scene. NB It’s a bit of a pain because
lots of states in the Visual Conflict FSMs had to be reconnected.
Perhaps a single prefab that holds both th e Motion Tracking and Visual
Conflict game objects would maintain the connections.
Detection of grasp opening and closing (simulated).