Why do so many of the fbx files I import just not have textures and some do? Mostly they don't

Why do so many of the fbx files I import just not have textures and some do? Mostly they don’t, it seems this is the default and that seems weird to me. For example the axes and pickaxes I have imported have no texture. PlayCanvas | HTML5 Game Engine

Keep messing with these texture settings and they will work
Screenshot 2023-12-24 2.03.27 AM

I really have no idea what to do