I'm working on a project that involves custom models so I been using CustomModelData.

The only thing that worked for when the models were to replace actual blocks and items.

(You can notice this by looking at the crystal in my hotbar.)

I've checked my JSON code, and my file paths. The only way it would to come back to me is if it were a bug. Keep in mind that the models were working a day prior to me filing this report I don't know that much. But this is definitely frustrating me.