I have previously had a problem with mobs like horses, skeleton horses, foxes, etc. despawning. This bug was listed as resolved but it is not fixed because mobs are still despawning.
I think this may have something to do with other mobs of the same type spawning which then replaces my ones
Related issues
Comments
[Mod] Celesian
migrated
Thank you for your report!
However, this issue is a Duplicate of MCPE-21416.
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:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki