Item Looks fine in S4S but is distorted in game

hello! that looks like a weighting issue to me (although i could be wrong). here's a tutorial on how to transfer weights!

i also noticed a few other issues with your mesh.



You should delete all "bone_bone_shape" files, and rig files that are NOT named just "rig" (ex; "rig.001", rig.002") & "s4studio_mesh_3" (as that's the reference you used i assume). You should also rename "Model001_5_-part2-bodymt.part2-bodymt_1_0_0" to "s4studio_mesh_1" Do the same thing for both blend files.