I have this same problem. I havent tried it in a private lobby, but I cant get the achievement for 25 because it stops counting them after so long. It also stops giving xp.
I have the same issue. But today I can confirm in private server the achievement DOES pop after you finish round 25.. finally!!
Glad I saw the comment about the game running properly in a private server I’d been trying for awhile with no luck keeping that dance XP meter working.
Can confirm that the trophy is unobtainable in online giddy park. It also doesn't tell you the score after you die, which it does in private
