I used the the "biped_meshes_and_animations" armature and weight painted. The model was working fine in-game with the female citizen animations but when the model tried to mine or gather, this error came up. I took a look inside blender and their was a "prop-weapon_R" as a child of the "hand" bone. I then checked the DAE in my code editor and found 6 uses of "weapon_R". Then I checked a vanilla female worker and the uses were the same...
You guys know any reason that this error is coming up, and how to fix it?