FBX support is only half finished, only a few versions of FBX (and there are lots!) work, and nothing with animations will upload. I think there is also a display glitch with some versions where it doesn't show in the uploader but once completed and saved it works fine in the editor.
i5, NV960 2GB, 16GB memory, 2x 2TB Hybrid, Win10.
i3 , Intel integrated graphics, 6GB memory, 512GB Generic SATAIII Win8.1.
Intel Celeron (duel Core), Radeon integrated graphics, 4GB memory, 180gB Generic SATAII, WinVista.
Q6600, Intel integrated graphics, 8GB memory, 512GB Generic SATAII, Win7.