I’m not using UE retargeting and, like I said, the hands aren’t even included in the retargeting; it should be the default MetaHuman hands pose.
But I’ve tried it both ways, same result. Retarget in Mobu, send to Maya with animation baked to joints, and as you can see the hands are correct in Maya. It’s only when they come into UE that they go wonky, and again, I’ve seen this in other videos as well, none of which of course I can find at the moment.
And today, I can’t really get anything into UE anyway. Either I get Mesh contains root bone as root but animation does not contain a root track (I get this by selecting the root_drv hierarchy and exporting selection) or I get the 'bones have been inserted or whatever and do you want to rebuild the skeleton" (I get this by selecting all of the skeletons, so I assume this is because of the DHI namespace in the other bone hierarchies).
WTF are you supposed to actually select (I am not a Maya guy) and export in order for things to come in nice and easy in UE? Every single MetaHuman/Maya tutorial video I have seen stops short of actually importing into UE and right now I am feeling like its because no one can actually do it.