Alright, so apparently the problem that's happening is that when I do the nifswap, the new nif I created shifts downward for some reason. Thus the new nif is somehow not matching up with the skeleton,
even though it was in the correct location before the nifswap, which makes me conclude that I probably did not do anything wrong in blender (probably). To show in pictures:
Firstly, we have the original nif here. You can see that the shoulders are
above the red line:
Likewise, the new nif I made, before the nifswap, also has his shoulders
above the red line:
However, once I do the nifswap, the new nif has his shoulders go even to the red line, meaning he shifted downward a bit (you can also see the skeleton now). I emphasize that this only happens to the nif
after the nifswap and not before it.
I'm not sure what's going on, whether I'm supposed to do something a bit different for Colonization leaderheads (although I copied the new nif to exactly where the old one was anyways, so there shouldn't be an issue there... right?), or whether I did some mistake in blender, or whether I'm completely losing it on something when it comes to nifswapping.
If anyone can figure out what's going on, I'd really appreciate it. If there doesn't seem to be anything wrong per se, I'll try to redo him in blender to see if that'd work.
Also, as a side note, some of you might notice that the formatting for the block list is not normal. A while back I accidentally pressed some hotkey I was unaware of (I think) and the format changed; while it technically doesn't really affect anything, and I can deal with it, it does make trying to locate certain files a bit harder, so if anybody knows how to fix that, that'd be great.