How to stop developer kit soldier weapon from being welded to its head?

The soldiers in dev npc kit I think used to work many months ago. But now after a seemingly random number of seconds the right hand(along with weapon) becomes welded to “head” and remind there. I have spent many hours going thru the scripts as well as substituting animate script but cannot fix this. I can’t locate where in the scripts is the error. By deleting the Handle of the weapon and commenting out the only two lines of code referencing the weapon, the soldier walks without the right hand being welded to the head. But obviously without the weapon. Any suggestions on what the problem is? I’d like to stop thinking about this defect.ugh.