I am having the same issue everyone else is having right now. I click to load the game, and it just shows the cover car screen then back to the Xbox home menu. I preordered the ultimate edition on amazon for a disc.
DN= Did not load
L. = loaded
I have quit and reloaded the game while it was loading: DN
I have hard reset the console (hold power for 5-10s: DN
Uninstalled and reinstalled the game (only 49GB?): DN
Format the whole Xbox system apart from game and app data: DN
I’m having the same problem now. Are you able to play yours yet?