Is the new editor fully functional? I have tried to add more materials to the material selector but the "new layer" button does nothing. I've tried using the old editor but any texture painting or changes to texture-maps that I make just turn up invisible after reloading the client. EDIT/ Seems like the main.materials.json file that I copied over from one of the vanilla maps just... Broke. Making a blank one fixed this issue. Trying to change up the settings for materials is rather unreliable, I found just editing the json file directly got the best results.