Players arm not lifting when equipping tools

theres probably already a solution somewhere in the forums but my english vocabulary is too poor that google doesn’t understand what my problem is.

after i updated my game, for some reason the players right arm doesn’t lift when holding a tool anymore and i have absolutely no idea whats causing this. might be from a model/tool i took from the toolbox since i’m not a good dev, heres a video demonstration of the problem since i dont know how to describe the problem properly