I am using Fuse>Miximao>Unity pipeline. I download as "unity FBX" even just "FBX" and no material folder is created as part of the download and as soon as I import the FBX file no textures are applied to it. Just a gray solid model. Create a model in Fuse > Save to Miximo > Click finish and accept rig > Select Download and choose "Unity FBX" > Drag and drop in unity project... Flat Gray. Boo!