The problem with the rolling ragdolls looks like it has something to do with the presence of the rug. He behaved normally when he wasn't dropped touching the rug.
Can someone create a small test map with just that room and the ragdoll in it, and attach it to this issue? (I have to jump through a hoop to get the beta of the mission, and I'd like to skip that.)
I don't know if I'll have much time to look at it, but I'd like to see if there's something obvious.
I tried making a testmap but couldn't reproduce the problem. I'll try to isolate that specific room in the map and see if that works.