Sorry for the bad leaderboard experience. I used Cloudflare for the leaderboard, and one of my friends fixed a similar issue by switching to a US VPN. I’m still new to this, so I haven’t been able to fully diagnose the problem.
For now, I’ve added a leaderboard button in the top-right corner of the game start screen. Player can use it to check whether their network and Cloudflare connection are working.
It might be related to using the free Cloudflare plan, unfortunately. Thank you again for playing and for the feedback!