File > Import > FBX > Select the file, all default options (scale=1, no apply xform, etc.) fbx model 'Amy' from ( ) => Ch46_nonPBR.fbx (there's also an option to download as ASCII to check content) **Exact steps for others to reproduce the error** blend file because the error is likely during the import so there's little value seeing the wrong result without a way to repro (which is given via the above steps). Though I confirmed via the ASCII version that LeftLeg and other bones have some non-identity PreRotation. This might be related to #53620 but that issue doesn't mention roll explicitly. You can confirm the issue by downloading an animation from, like 'Walking', the one for female model (red), only called 'Walking' and nothing else ( )

Change roll=-66deg and observe the bone looks aligned to all other bones.

Open Transform panel (N) and observe roll=+66deg.

Observe that bone 'mixamorig:LeftLeg' has strange roll - it should immediately stand out (see screenshot).

File > Import > FBX > Select the file, all default options (scale=1, no apply xform, etc.).

Same rig imported as Collada (.dae) works well.įlipping the roll fixes the associated animations.Įxact steps for others to reproduce the error Mixamo uses Fbx which they don't really understand and worse keep changing so that creates errors in reading the bone rigs between Mixamo and what ever 3rd party software you try to load your animation into, things like crossed arms, folded skin, and busted animations are all caused by Fbx being misread and the fact of the matter is Autodesk does this by design so the point of this addon i use is simple.Imported armature from fbx downloaded on has some bone with wrong roll. Now if you want to share the model I may suggest which rig to use but at this point only you can answer that

you can add bones to a Mixamo rig with face being the most common so you can animate a smile now that Adobe ripped out the blend shape system but you can't upload your own bones if they do the same thing as Mixamo bones i.e, Mixamo will not replace bones.

ok all Mixamo rigs are the same but for the hand i.e, 5 digits vs a claw or nothing.

Mixamo control rig blender