a bug in my model

I chose to use an older version of the resource pack because the latest one doesn't work. I also installed a new version of the .py of OBJmc. I don't know what it could be, but the model I put in looked weird. (I USED A TRANSLATOR, I'M BRAZILIAN)

To place the model, I named the item "brick", the texture "item/brick", I set
-Position Easing: Linear
-Texture Interpolation: Linear

-Scale: 1.0

The resource pack I used ran smoothly, in version 1.21.7

That was all

- Windows 11
- 1.21.7
- Intel(R) UHD Graphics 730 / 11th Gen Intel(R) Core(TM) i5-11400 @ 2.60GHz

I don't know much about this area, that is, I don't know what I'm doing

Start by reproducing the reported model appearance with the stated resource pack, Minecraft 1.21.7, item name, texture path, and interpolation settings. The report does not name a source file, test, or entry point beyond the OBJmc Python file, so identify the relevant model-loading or rendering path before defining a fix. Done means the model renders as expected and the cause is covered by a reproducible check.

Written by the indexing model from the issue text.