Summary of the bug :
Pressing ESC in the loading screen brings up the pause menu once loading is finished, but you cant see it, because the loading screen will still overlay it, so it looks like the game froze.
When does this happen : (after launching the game, in the menu, while racing, ...)
Loading screen to race
How often does this happen : (Always, very often, occasionally, could not make it happen again)
How to replicate the steps (if reproducible) :
start a non MP race, hit ESC once loading starts