Mud Bricks have their texture incorrectly mirrored, which causes misalignment with the slabs, stairs, and walls. 

Instead of using "minecraft:block/mud_bricks", the default blockstate file (mud_bricks.json) uses "minecraft:block/mud_bricks_north_west_mirrored".

Proposed Solution:{}

Remove "_north_west_mirrored" from the blockstates/mud_bricks.json file.