I bought Halo 3: ODST for the MCC earlier this year and played through it without issue. Now the game will not start. It says ODST is not installed when I try to start up a game, even though both my Xbox and the storefront recognizes that it is, in fact installed. When I go to Change Installed Games under Options and Career in the MCC Collection, ODST has a blue lock on top of it. Already uninstalled and re-installed the add-on. Nada. So I am left unable to play a piece of content that I have paid for.