Our town map board has a glitch where when any map is updated or created in the newest snapshot the example below will happen. See attachment. The map without any glitch was created before the snapshot was updated and as soon as we went in the radius of where the map was from, it glitched.
Environment
Java Edition, Windows 10, on a server and was seen by all players. Happened with and without any added resource packs.
Duplicate of MC-179858
This issue is fixed for future snapshots of 1.16