I've been getting a bug lately that whenever I finish a level it says I have the 15 minutes XP boost but it doesn't actually apply. This happened several times now and is kinda infuriating. Edit: I finished top 1 in diamond league but it didn't unlock the Legendary achievement. I was 5000xp ahead a couple of minutes before it ended, I worked so hard on that and even sacrificed my sleep especially when the others were competitive as well. I don't mind the gems but atleast unlock the achievement.