https://forum.heroesworld.ru/showthread. ... &page=26
Okay... in the middle of the page is my post about scaling ratios......it says that the model with a skeleton was obtained through Archangel, and the animations were obtained through the NOESIS program....most likely, this is a working version; as far as I remember, so you need to read how to use Noesis there....damn, it worked out, but I've already forgotten the details, there were so many trial-and-error methods.....and eventually everything resolved itself, but I don't remember exactly how )))

Added after 6 hours 23 minutes
I opened the animation through Noesis, but only with one set of bones; all the bones move, nothing stays in place....
therefore, we need to understand how you do it, step by step

Thank you, yes, we also tried using Noesis, the animations are displayed correctly there, but there are always problems with the size of the skeleton; it is very small, and it is not very clear how to choose the scale.
I see from the link that SCALE value of 25400 yielded good results, but in our case, the skeleton turned out to be too large with such a value.

But overall, based on what we see, the NWN2 plugin for 3ds max 2008 for GR2 files also works correctly. If you import a bare GR2 animation into 3ds max, then you can also see that the animation itself is fine.
That is, the problem here is most likely either in the SMD import plugin for 3ds max or there is a bug in Archangel itself, due to which the exported SMD file may contain incorrect data about the model's skeleton.