Blocks completely missing

Many blocks are completely missing in part of a Roofed Forest and part of a village. I can stand in the places where these blocks stood with no problems. I have reloaded the chunks, logged in and out, and closed and reopened MInecraft to no avail.

What I expected to happen was...:
The village would be normal with no mistakes
What actually happened
Two buildings appeared to be cut in half, almost as if unfinished, and over half of a farm and a little bit of another farm are missing. Also, many trees were cut in half as well, but beyond that the forest was fine.

Steps to Reproduce:
No real "steps", it just HAPPENED.

Screenshots attached