Whenever I start Raceroom and get to the main menu a window in steam overlay opens up. It cant be closed ( I have tried ESC, alt + f4, etc). Deleting browser data doesn't work also. The window closes but it opens up whenever I try and go out of steam overlay. I also tried disabling steam overlay but it doesn't let me click on any buttons. what I see -
Are you sure you're not running a combination of arguments, including the new webmenu which is in beta and could break things? Try a clean start, no startup arguments
I think this can happen when you're infected with certain kinds of malware. You should check your PC for malware.