Thank you for that explanation, I didn't notice Blender wasn't reading the bones as an Armature, I hope I can fix this problem, but it might just be the way the animations get exported, so I can't promise that I can.
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You’re welcome! It’d be nice if you could, but I’m in no rush - just hoping to leave some breadcrumbs for others to follow if they’re hoping to try to make it work.
It was a little troubling since the animation samples are in a Unity package that behave as expected, but the FBXs are not, so I didn’t find out until after I had bought it. It’s going OK for me now, but I worry about others that might not be able to find a way to make it work for them.
Happy to follow-up if you need, but I worry you/me/both of us are too busy to do that haha. Thanks again!