for some reason whenever I try to import something into unity from blender it just goes all black, does anyone know why and how to fix it?
If your Blender model has multiple textures then Unity might not be assigning them properly. By default Unity assigns a simple diffuse shader to any imported model, so if you’ve got diffuse, spec, bump maps etc it can assign one of these to the diffuse. You might need to change the shader type of the material and reassign the textures manually.