1.13.1, I've had this world for about a year and it was created as a 1.12.2 world
When I was able to load into the game after this crash I found tht my shulkerboxes xhests and furnaces were empty. a good amount of my build was also taken over by the jungle as well
yes that seems very much like my problem. is there a way to fix it ? the other article linked didn't give a good description of how to fix it .