Nether Portal Won't load my world

So after the 1.14.60 Hotfix, my world started going crazy. The Nether portals weren't working the same as before. Every time I enter the nether, it works as it should. But when I come back, the loading screen takes a long time. Then when the overworld finally loads, chunks are missing. They're not missing per se, but they don't load correctly and all I see are entities, like chests, armor stands, and animals. I have tried resetting the app multiple times but to no avail. Send help ASAP.