I'm in search of an ocean monument. For that im trading with cartographer villagers, trying to unlock the explorer map to make my research easier. Whenever I trade a normal map with him (I believe is the second or third trade) and i put it in my hotbar, a lag starts in my world, but not an fps lag, is like you had a very poor connection to a server. Anyway, every entity doesn't move, the blocks I mine don't appear and I have to relog the world. When I open it again, I don't have the emeralds I have traded with that particular villager, they reset to the very first one. Also, when I open the map, it shows a very weird image, that you can see in the screenshot below.