Issue #30291: Wrong vertex groups on vault door model
There is misunderstanding in issue #22473. It CLEARLY VISIBLE without TFC.
Open build the menu, go to structures > doors > vault door (Access to vault parts is required.) , place it somewhere and open. Look on the pistons on the lower part of the door's inner frame. One of them is stretched like some vertexes is not assigned to correct bone.
Related Issues: 22473