Hey! Sorry to hear that. What OS and browser are you using? I've tested on Windows/Edge, Windows/Chrome, Mac/Safari, and Mac/Chrome, as well as iOS.
I'm running Windows 10, and I use google chrome but the game automatically opens in Microsoft Edge (internet explorer). I'm going to try to see if I can get it to open in Chrome and see if that helps.
EDIT: Opening the game in Chrome worked. I don't know why I didn't try that in the first place. But thank you for the quick response!
I'm glad it works! I occasionally dual boot Windows for gaming and definitely recall testing this on Edge at some point, but I might've broken something after that. I'll give it another try soon, but good to know that Chrome works!
On second thought, I just remembered that I tested on the new version of Edge that's Chromium based, so the same internals as Chrome. I'll get to testing on the old Edge the next time I want to play some Halo...