Does the interpolation method work correctly? When I was doing mine, there were hundreds upon hundreds of animations that needed fixing due to the animations using 0-360 rotation. If one frame was 0 but the next was 360, you wouldn't notice, but if you interpolate them, the new frame becomes 180 and when you're using x,y,z axes for 20 bones suddenly you have tons of body parts jumping all around.
Is this going to be an R06 option?
@Kaldarasha it's really whoever wants to fix it. It's not a big enough project to worry too much about