[1.16.4] Texture won't load for my obj model

[RMSCA]

Here is my blockstate file

{
  "variants": {
    "": { "model": "tamako_market:block/kotatsu"}
  }
}

Here is my model file

{
  "loader": "forge:obj",
  "model": "tamako_market:models/block/kotatsu.obj"
}

Here is my mtl file

newmtl m_0
map_Kd tamako_market:block/kotatsu

Here is my obj file

 

And here is my assets folder

Thanks for helping!

[RMSCA]

so I have managed to get my texture work, but now my block looks like this:

 

if I disable this emissive lighting in my mtl file, my model will looks like this:

is there a way to fix this?

thank you!

Edited March 13, 2021 by RMSCA