Part of tool wont move during animation

Hey, so im making an FPS game, and up to this point i was simply rigging a tool to a r15 rig with motor 6’s, animating that and worked perfect for 5+ weapons. I decided to remodel the AK, but when it came to moving the mag during the reload animation, looks fine in the editor but mag stays in place during the ingame animation. Its not anchored, not welded, and i redid the animations 3 times. Works with any other weapon and animation, just not this one. HELP!

Mag should be removed by now:

obraz_2024-06-09_184850396