That's because 1.2.4.2 was an amazing update, plus it had mods, and there is about 50 Hours of gameplay per world, geometry dash has like ~5 minutes * star_level per level. That's why XD
Bug I found a bug that when you write in the description for one of your levels and you have to delete a section it doesn't save and just becomes the thing you wrote before deletion. Can u fix this for 2.01 plz