FBX Models have no Textures

I'm a bit new, so I apologize if this is simple, but I'm running into an issue with textures that I can't seem to figure out for the life of me. I have an .FBX model from blender. When I expand the imports I can see all the materials from blender, but all of the textures are missing. I cannot edit the materials to attempt to add them (though, I'm not sure if this would work with UV mapping since I'm adding them in Unity?). 3D viewers shows the model perfectly, but when importing its blank.

Note: Several posts I've read mention an "extract textures" function. I have not been able to find this either in the inspector or by right clicking