I was playing survival on a newly generated world for fun and eventually I found a buried treasure map inside a Shipwreck. I decided to check it out and finally reached the X spot on the map. I dug there for more than 40 minutes and I found absolutely nothing. I couldn't believe that I didn't find the chest after so much time, so I eventually created a new creative world with the same seed and went to the X spot with the spectator gamemode. To my surprise, there was no chest at all! Shouldn't there be a chest to every buried treasure map? What happened?
World version: 1.16.2/vanilla
World Seed: 8154097757949676873
World Type: Large Biomes
XYZ Coordinates for the Buried Treasure Map: -1646 / 56 / 1054
XYZ Coordinates for the Missing Treasure Chest: -1374 / 63 / 1414
Thank you for your time.