Snapshot crash when world loaded but chunks still being rendered

I reached a point in my world where each time it tries to load a certain chunk the game and launcher both crash.  To confirm this was the case, I got my game started up and backed away from the suspected crash location, and the crash still happened, but later than it did previously.

I have attached the latest crash log.  The error indicates "We are asking a region for a chunk out of bound | 823 736".

The save can be downloaded here:  https://www.dropbox.com/s/qvtc5r3rtsvwjvx/18w19b.7z?dl=0

Player name: reaxion