In my "beat the dummy" world where a dummy model can be hit by a baseball bat, the puppetmaster script is removed from the dummy and the collision armature doesn't attach to the model and falls to the floor. This can't be seen in the world since the collision armature is invisible, but I made a test world with the latest SDK and asset versions and the same thing happened, I attached meshes to the model to demonstrate.
No errors or warnings of scripts being stripped appears in the log even with the sdk logging and udon debug launch settings enabled