It sounds like you’re encountering mesh merging issues in Unreal Engine 4 while working on your gaming APK. To fix this, ensure the child character’s skeletal mesh matches the parent mannequin’s rig and is added as a separate component in the blueprint. Also, check the scale settings to avoid size discrepancies, and confirm that the animation blueprint is compatible with the new mesh. If issues continue, consider re-importing the mesh to clear any hidden conflicts. This approach should help maintain each character’s uniqueness in your game.