Hots models to fbx for maya

[Ravaanos]

ello lads, I'm here with a question- how can I port m3a/m3 models from hots to regular fbx? (I wanna port it not to wc3 but completely different game as a mod, but saving the animations, etc.. but. Blender spits poison and doesn't want to export it as fbx)
I want to make some edits and exports through maya, so I need preferably fbx at least. I was able to port mesh and armature separately, but it breaks the skeleton and weights a bit, and its faster to make a new rig at this point I guess.. but I want to have original hots animations tho.