A SkeletalMeshComponent set to query only physics still interacts with collision.
This is a regression from 4.21
Seems to be a side effect from a change to GetCollisionEnabled_CheckOwner
Place the mannequin in a level and mark its collision to query only.
Place a simulating box above the mannequin and play.
Expected: The box will pass through the mannequin.
Result: The box collides with the mannequin
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-76579 in the post.