So, I have an issue with 1.14.4 cartographer. When I've tried to trade with him as an apprentice in order to get him to Journeyman to unlock the Woodland Mansion explorer map, my server always crashed(it wasn't even the time for the upgrade, it was at the middle of the bar). I've tried 6 times and every try resulted in a crash. Below I will leave the crash note.

Later Edit: /locate crashes the server too, I will test this on single player to see what is going on.

Later Edit: After copying the map in single player and waiting for 2,3 minutes, I was able to locate the Mansion, however it seems unuasually far, may this be a generation problem? Seed is -6775657315327000644 and the world was created in 1.14 .