All the down stairs anims on Miximo are broken! I probably could animate one myself… but does anyone know where I can find a downstairs looping mocap compatible with Makehuman?
Have a look here (the blend file has a down stairs animation included; i looked into it and it works in 3.6.. internet PC only ):
https://blender.stackexchange.com/questions/249262/fixing-descending-stairs-walk-from-mixamo