“Hi! I’m building a web-based animation tool using Three.js. When I apply Mixamo animations (downloaded via RPM reference FBX upload) to RPM avatars, the character lies on its back and arms are mirrored. Do I need to apply a 90° X rotation? What’s the correct workflow for Three.js/Babylon.js (not Unity/Unreal)?” - i have managed to match the y up rotation if i start with the glb file from a RPM avatar - but the arms nonetheless cross. Anyone have any experience with same - advice wrt retargetting mixamo (and other) animations to align to the rpm armature. You can see what I’m up to here: Black Box Animator - in case that helps clarify the use case - task. Fair warning - it’s beta software so misbehavior happens. Would love any guidance on the default armature, the morphs, any known similar issues with odd left right swapping of the arms - appears to start at the upper arm joint and carry down the hierarchy.