Requesting assistance with exporting custom fighter tank animations

[SolarStorm327]

I've been attempting to make a custom fin animation for the Republic's IFT-X hover tank based on the fin animations from the 2002 Clone Wars video game. I have the animations changed and completed, but when I export the animations, only half of the animation bones are exported.

I'm using the Autodesk Softimage Mod Tool 7.5 software with ANDEWEGET's XSI ZETools plugin.