A turtle inside the ticking area, but outside of R44 will despawn upon hatching. This means the player cannot control if the turtles will despawn even after a long process of waiting for them to hatch.
The fix would be turtles generated from a hatching event should have the persistent tag.
Related issues
duplicates
Comments
[Mod] OcelotOnesie
ravinmaddhatter
Thank you for your report!
We're actually already tracking this issue at MCPE-70664, so I will resolve and link this ticket 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