as far as i understand it is legal to use game assets from blender 3d in ue4 to make games for profit. but not codes (and maybe game logic too). so im not sure if bones, armatures, and animations are game assets or game logic/code. there need to be something that makes bones, armatures, and animations work (code and/or logic).
maybe i can export bones, armatures, and animations as FBX files to avoid problems ?
I think you’re asking questions about blender licensing terms and not UE4, so I’ll leave the answers to others.
ok thanks for the answer.