I was going to play Minecraft 22w16a and create a new world. Unfortunately, When I go to Singleplayer, it says that it is loading the worlds and like 1 second later the game crashes. This was the crash info I got.
The game crashed whilst couldn't load level list
Error: java.lang.NullPointerException: Cannot invoke "java.lang.Comparable.compareTo(Object)" because "pivot" is null
Exit Code: 255