I downloaded an animation from mixamo as I have always done. Imported it to Unity and added to my character animator as usual, but I only get a T-Pose. Even in the inspector and inside the game. All the joints in the animation shows up like "mixamorig:LeftLeg", "mixamorig:Hips", maybe that's what causing the problem. But it has never been like that. Did the mixamo website change? Or is it a problem in my Unity?
I have already tried to change the "generic" rig to "humanoid" but it still doesn't work. Never needed to do it with other animations though.
You have probably chosen this option while exporting from Mixamo (ie. without picking correct animation):
You should pick the relevant animation in Mixamo interface and then download field changes it into:
(Without skin means that you will add animation only, without re-downloading the whole mesh)