Hello, thank you for giving the game a try!
I've checked the game with different up-to-date browsers (Chrome 152/Firefox/Edge/Opera/Brave) and even an old matching version of a chromium 137 browser and unfortunately can't reproduce it.
Perhaps you can try to update your browser and/or check if there might be something that could block the network requests to load the game data?
If you have any other info that could help me diagnose, I'd be glad to look into it more!