i made :
-cube1 skinned by joint 1
-cube2 skinned by joint 2
-and blendshape ( cube2 is target of cube1 )
when i export the scene as fbx basemesh(cube1) not exporting
the only way i managed to fix it is by deleting skincluster of cube2 but i don't want to do that because blendshape will be usless