Hey there, I checked to see if DoCollisionTest was enabled (because I honestly didn’t remember) and it was.
I had already looked at the link you provided, but unfortunately it didn’t solve my problem: the mannequin mesh is invisible in my Character Blueprint since I don’t need it rendered so there is no risk for the character to clipping in itself, but I do need the head movement and animation dynamics from the Game Animation Sample.
I lowered the near clip plane to 1, but it still clips into walls and other props, so that doesn’t really fix the issue.