Would you like to update reference pose of skeleton from this mesh? (~40x)

“Would you like to update reference pose of skeleton from this mesh?” is asked about 40x when importing a FBX I converted from a free OBJ I found on the internet. Why does it ask so many times? Is it once per bone?

Id not use free things from the interenet in this case, being that most likely they are not made for games, they have been rigged for animation in 3dsmax, or maya etc. maybe they haven’t rooted all the bones so everything is its own root or something