I was playing the first level on a new save file. when I finished it, I clicked a bunch of times, then it took about 5-6 seconds for to load the hub world. (for my computer it normally takes 2-3 seconds) then it froze up for about 3 seconds. then gave me the credits. I clicked continue and it brought me to the main menu. then I clicked on continue again and I had every level unlocked. This was on turbowarp, with a controller. i do not have a video. i will try to get one soon.