How to Stop Specific Walls from Connecting Diagonally

Because the mod dynamically supports wall blocks added by other mods whenever possible, you may occasionally run into a custom modded wall that renders strangely or connects when you want standalone posts. You can stop specific blocks from connecting diagonally by using the diagonalwalls:non_diagonal_walls block tag in a standard vanilla data pack.

Finding the Exact Block Name

1. Load into your world and press F3 + H on your keyboard to turn on vanilla advanced tooltips.

2. Open your inventory and hover your cursor over the problem wall block.

3. Note the namespace and block ID shown at the bottom of the tooltip.

Excluding the Block with a Data Pack

1. Open your world save folder and navigate into the datapacks directory.

2. Create a custom data pack folder containing a standard vanilla pack.mcmeta file.

3. Inside the data pack's data/diagonalwalls folder, create the block tags directory used by vanilla data packs and add a file named non_diagonal_walls.json.

4. Add the problem block ID inside the file's values list and save it.

5. Return to your world and run /reload, or exit and reopen the world, so the game applies the tag and keeps that wall from forming diagonal connections.