bit of a blender noob here. I'm trying to rip a game model, and the base textures aren't applying correctly to the model via shader editor. Some of the textures are applying to the correct locations, but the rest is completely transparent. The SSS and ILM textures work fine, and apply entirely and correctly. I was recommended to change the alpha settings of the base colour texture to none, but that didn't work at all. I was following a guide, and they completely glossed over this as a possible issue. Its my first time using it, so I'm pretty confused, and I kind of don't know what I'm doing without help.
It looks like it has to do with the format of your image, you need to Save as a copy of your image as PNG for example:
Then reimport in your material, plug the Image Texture and it will work:
By the way the texture was not visible in Solid mode only, and in Solid mode the Viewport Shading was set to Color > Texture, if you switch to Material you'll see the classic Solid grey shader: