Problem with TF2 Backpack Icon for Model.
So I want to upload an item to the Workshop through the Beta Importer in TF2, I have everything except for the Backpack Icon. I've tried to create one but it doesn't load. Every time I try to upload an icon it says "Load Failed *location of tga* ". I think it's not the alpha channel thing or the size because it doesn't tell me that. I don't know what I'm doing wrong. Can someone explain to me what the problem might be or how to make an Icon the proper way? Thank you