I'm currently updating the command blocks on my server. Since Minecraft had to change a ton of commands (for whatever reason), I no longer know all the commands. Could someone help me how the NEW / fill command works?
Here you can find all information:
https://www.digminecraft.com/game_commands/fill_command.php
I do not know what your / fill commands look like but it works like this:
/ fill ~ -5 ~ -1 ~ -5 ~ 5 ~ -1 ~ 5 quartz_block