A buried treasure map that was found on a shipwreck didn't work as intended, as it was named "Buried Treasure Map", and when used, it acted as a normal map. It also seemed off, as it looked pretty much like a used map that has been renamed. The circumstances were also strange, as the game took very long to open the chest, even letting you do other stuff for around 20 seconds, then, it suddenly opened, and if you attempted to open it multiple times, the chest opening sound played multiple times overlayed.

How to repeat:

1. Create new world with the following seed: -5643804401960680282
2. Get to the coordinates around 848 63 434 (Survival or Teleport, doesn't seem to matter)
3. Enter the shipwreck and locate the chest that is in the room with the opened door.
4. Attempt to open the chest (Wait a bit if it doesn't work)
5. Grab the Buried Treasure Map and use it.
6. The map will act like a normal map.

I will give some screenshots of the events in a brand new survival world.