Dragons despawn when leaving chunk and are never seen again. [2.1.10]

[Sazuzaki]

Describe the bug When I load into a chunk with a dragon roost, it's there out and about at its nest. But when the chunk unloads and I come back, the dragon is gone.

To Reproduce Steps to reproduce the behavior: Not sure how to reproduce as one of my mods seems to be causing it, but I'm not sure what. I've already uninstalled Performant, but still have the issue.

Expected behavior Dragons to still be in said roost.

Screenshots https://i.imgur.com/OvmLHLe.png

Additional context Let me know if you need the complete logs. It works fine in 2.1.9