Previously generated chunk has either partially deleted or regenerated in 1.14
A chunk that I always pass through near my base in my single player world now is a giant hole in the ground. At first I thought it was a visual error, but I can break and place blocks inside it. A torch I previously had there also got replaced but on the hole's floor. Fish have also spawned within the water at the floor. This leads me to believe it regenerated. The only thing I did was save the world yesterday, and reloaded it today. There are similar problems in the forums to this but for much older versions of MC.
Environment
Edition Windows 10 Home / Version 1803
Java Version 8 / Update 211
Linked Issues
Created Issue:
Previously generated chunk has either partially delete or regenerated in 1.14
A chunk that I always pass through near my base in my single player world now is a giant hole in the ground. At first I thought it was a visual error, but I can break and place blocks inside it. A torch I previously had there also got replaced but on the hole's floor. Fish have also spawned within the water at the floor. This leads me to believe it regenerated. The only thing I did was save the world yesterday, and reloaded it today. There are similar problems in the forums to this but for much older versions of MC.
Environment
Edition Windows 10 Home / Version 1803
Java Version 8 / Update 211
Previously generated chunk has either partially deleted or regenerated in 1.14
duplicates

Duplicate of
MC-150202. Feel free to add more information to that ticket!