maya animations to unity with curbs.

Hi,

Sorry if this is already a thread and has been solved but I was unable to find one.
I basically have a rig thats animated but its not the joints that are animated and keyed rather its the nurbs curve controllers. I also have IK controllers on the legs that are attached to curves. when i try and export the animation to a .fbx it glitches out and ruins the animation. is there anyway to transfer the animation to just the joints or just fix this problem in general??



https://imgur.com/a/xlim1Tc


the first image is before the export, the second is the errors, the third is when i open up the exported .fbx file.​