When you import an MTL file the textures don't seem to come with it (they're pathes are relative, and they are correct; additionally, other apps like the built-in 3D model viewer in Windows can open my OBJ just fine).
It looks like maybe the texture UVs are being scaled inappropriately or something, because they're just not even close. -- Also modifying the scale does seem to alter the UV mappings, which should definitely not be the case.
Also weirdly, the textures change between when you're placing and once it's placed.
Here's some pictures: https://imgur.com/a/ztg63Hl