Maybe some checkbox need to be clicked there was user having issues too and seemed to fix it
User is Tony Winslade on this videohttps://.com/watch?v=6tC565pR03U
This is his comment:
“ok finally got it sorted.
for the mage i had to import with the skeleton and animations ticked at the same time, same for the boss, and for the paladin i had to import the skeleton first then the animations seperate.”