Entites like villager, bee, horse, trident and minecart that shouldn't despawn starts despawning.
If you go out of render distance or do some work the entites despawns. They despawns after giving the nametag too. Please fix this it broke my many farms like villager trading hall, gold farm, raid farm, iron farm and many more.
Related issues
Comments

Thank you for your report!
We're tracking this issue in MCPE-144208, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki