Name tagged fishes and other mobs including villager's who were traded with goes missing after several in-game days and/or after save and quitting several times.

Fishes and other aquatic mobs including axolotls goes missing after several in-game days or after saving and quitting game a couple of times , the same thing happens to villagers regardless of whether they were traded with , name tagged , cured or even with all of the previously mentioned scenarios.