It occurred for both web app and in engine.
I'm kinda done with the game because it was for a game jam but I'll surely try it again in the future! Thanks for answering and best success.
I am also running into the same trouble with unique usernames right now.
Would be really cool because else the leaderboard gets flooded really quick.
Wonder why it doesn't work. Always says 409: Username already exists.
I even tried deleting the entry before.
Oh well.
https://rubydev.itch.io/match-parade
Cool themes and in love with the visuals!