I changed the brick wall blockstate file multiple times, but each time, no matter how drastic the change, the model never updated, despite, according to the wiki, everything should be in order.

I attached to the report the resourcepack I created.

Changing the block models worked just fine. It's just blockstates and, I believe, blockstates with multiparts only, as I put on a resourcepack that changed blockstates of models using variants and that worked just fine.

Please close, I just noticed I wrote "blockstates" incorrectly