I updated Minecraft, went into the game, realized there was a ton of input lag on my keyboard when playing. I tried to reboot the computer to see if it fixed it, then when I entered the world, the input lag was still there and then a few seconds later, a screen pops up in Minecraft saying my world got corrupted. I got disconnected and when I went back in to check, multiple chunks were just deleted entirely all the way down to the void, and my save file went very far back to the point where all my builds nearby are no longer there. why? I don't even play with mods or anything. this type of stuff did not happen in the last update. In the screen caps, it shows the remnants of my builds and the amount of chunks that got deleted.