I've found a few bugs not related to connection issues that would be nice to be addressed:
-Songs that already had "Superstar" or "Megastar" score reached before those titles were added won't be updated to show the new title. Even after reaching the score again.
-"Megastar" might be bugged as that rank won't show up in the song list. Might be related to previous point.
-Every time I finish a song with 3+ stars, it'll say I unlocked an avatar, even when I've already unlocked it

Quality of Life improvements:
-Have a setting to change the default to dance alone vs always having to tick off Never Dance Alone before every song
-A way to rearrange the songs you've favourited, the first ones I added may not be my top favourites
-Have a list of recently added songs (not counting the pop up when you first enter the app). If I've been away from the app for awhile, I don't want to always go through A-Z to see if I've missed any new every time
-It'd be nice to have some sort of perk to leveling up besides just the number going up. Maybe milestone avatars or something like that.

Thanks for reading!