Animals dispawning with a nametag

For the past few months me and a friend of mine have been dedicated to make a animal sanctuary in survival world for all the kinds of animals in the game. So far everything was according to plan, until the nether update recently came for consoles so then i began to notice some animals missing from their habitats which were (Foxes, Bees, and Polar Bears) these were the only animals i had so far so i don't know if it's happening with other (non tamable) animals as well. Anyhow i assumed because they didn't have a gamertag therefore i thought it would fix the issue, apparently putting a gamertag on a animal on this new update isn't possible anymore i don't know if it's been taken care of or it's a new bug i found out about either way in my opinion it's quite disappointing especially wanting a unique pet but also for the fun memories i have made on this specific world with my close friend. Although i hope we can look upon this bug and resolve this thank you 🙂