My bug involved me exploring my world in the normal overworld. after quite some time I decided to find a village to make a new portal to the nether. After going into the nether my game for whatever reason crashed. (Which has never happened to me). When I logged back into the game I was still in the nether but the portal had disappeared. I used a third party program (minutor) to see if the portal in the normal world was still there, and it was still with the portal activated in the normal world, but no sign in the nether of their ever being a portal. I was at about -3500, 4500 where this happened. I will attach a copy of the level.dat for your convience. No big deal, just didn't want this to become a problem in the future! ![]()