Quote: "@ Jerry Tremble
in Ultimate Unwrap, look at the material maps in the drop down check to see if the texture for the eyes has opacity texture. if so just select none."
Yeah, I noticed that when my characters imported as see through! What's even odder is if I load a Mixamo fbx into ultimate unwrap on my laptop, the opacity map is there. If I download the SAME Mixamo fbx to my desktop and load it into UU, there is no opacity map. Same UU versions. Even weirder. However, the same models will show up in FBX2GG with no eyes on either computer. Anyway, like mentioned above, it seems to be the facial blendshapes that are doing it. I don't know why, but the same characters rigged without them selected gives my characters eyes.
Also, I've noticed, UU occasionally adds extra bones and a "U3D mesh" to the characters sometimes on import, but not always. If they aren't deleted, FBX2GG can't deal with them and crashes. Either way, the eyes are missing, with or without the opacity map. Perhaps that is related to the blendshapes, I don't know. I'm not going to mess with that anymore as long as what I've got working continues working!
MAME Cab PC: i7 4770@3.4Ghz (passmark 9945), 12GB RAM, Win 10/64, GeForce GTX 1080 (Passmark 12735); Shiny new laptop: i7 4800MQ@2.7Ghz (passmark 8586), 16GB RAM, Win 10/64, GeForce GTX870M (passmark 3598); Old laptop: i5@2.3Ghz, 8GB RAM, Win 7/64, Intel 3000 graphics