I know I already made a topic for this, but it wouldn't let me unmark it as solved for some reason, no button was showing up.
So since I've made that topic, I've had a bunch of ported models that just don't show up in asset viewer and in-game. Here's a little checklist of everything that I've tried so far:
1. Reverse normals.
2. Quadrangulate mesh
3. Remake the model in maya and try porting it again.
4. Apply white base color.
5. Remove transparency from materials.
6. Removing and re-applying textures to mesh.
7. Ensure that there are no error messages in the cmd box while converting.
And sometimes, when I re-make one model and port it again, it randomly works just fine. Other times, I can trying porting and re-porting a model over and over again 50 times, only for it to never work. So it's really just a game of chance here. Another problem I'm having is with my ported bonus points model, it appears just fine in asset viewer as it should, but in-game, it's just invisible. I guess another odd thing to mention is that all of these models that appear invisible in asset viewer, they all appear perfectly fine in Tom's xmodel util tool.
So I guess I just have to keep looking for a solution for this I guess. Is there any chance that this issue is being caused by my computer instead? I'm really out of options here lol. So yeah, if anybody knows of any other solution I can try out, please don't hesitate to let me know. Thank you!