When setting up a physical animation profile using the default 3rd person animation project, I discovered a bug that requires restarting the editor to fix.
Repro Steps:
Open the PhAT window for the 3rd-person character skeleton.
Create a Physical Animation Profile and select it under Profile
Add all the bones to the profile
select all the bones in the skeleton tree
click on “selected” in the PhAT tool
Click on “simulate” in the PhAT tool
Go to main Editor window and hit “Play”
Character goes into ragdoll and falls through floor
What you are seeing isn’t by design but it’s also not the expected usage of Physical Animations. Instead of adding all bones make sure you don’t include the pelvis. You can see the proper way to set this up in our Physical Animations Live Training video and Ian explains why not including the pelvis is required.