Crash after Import

Recently i ported Happy Bunny ( Monster ) to Dwarf Bunny ( Minion ) with almost no problem, walk, idle animations looks pretty fine, less one... i noticed today a idle action anm bug. I checked and the original minion has one but i find out that Happy Bunny one is not located in monster.pap with the other animations that i used for the Walk and the Idle.

So after that, i tried to snatch that animation to insert in the monster.pap with the others, but everytime i follow the guide and click import to import the .fbx anm, the application just close/crash. I already tried to reinstall the prerequisites but with no success, tried to test other animations, skeletons and paps, also with no success..