I really need some help, the .exe file downloaded easily enough and the installation worked fine as far as I can tell. However Byond is frozen at the "Loading Game Data" screen. I have tried uninstalling and deleting One-Drive from regedit, changing userpath, removing and deleting any anti-virus programs, allowing Byond through the firewall, running as administrator and reinstalling and uninstalling.
I have problems with it too but in my case, there isnt any loading screen showing up
Do you have a Japanese locale? That's known to cause issues.