Skinned objects not displaying properly

Ok, so i have an animated plane with some skinned objects that are not displaying properly. I ve imported the same fbx back to 3ds max and the mesh looks fine. I ve tried every export setting there is and different skinning tactics but the result is the same on sketchfab. Has anyone figured out a workaround for this? I could just simply detach the elements and link them but i have so many elements that it might brake the animation s performance.