Hi Benjamin,
I’m unsure what happened yesterday, but I can confirm that the default manny physics asset does in fact go to sleep (as does another project I am looking at in 5.4). I’ve looked at the code path and it is as suspected the Island sleep which is controlling that behaviour.
This means that the issue you have is not the same. I’d suspect a physics asset setup. From what you said this is a default one we use with metahuman? Could you ping me across a repro project in a default version of our engine so we can investigate please?
Thanks
Geoff