How to update your JSON 3D model without redoing all the texture mappings

I'm using 2024.4 as of writing this.
Close MCreator.
Search your mod workspace.
add "name:=" to the search bar so it's not messy

check the files with "models" in the file address.

as you can see, there's three.

Now, replace those three with the updated 3D JSON file.

Open MCreator to check if your model is updated.

It worked for me, it might help you save time.