I will try that now in my franchise for a a single game (since I'm in the playoffs now and really don't want to play to many games with these new settings.
After playing two full games with 15 minute quarters with the packers vs cardinals in my franchise mode which was a divisional match - the first game which had injuries set at 45 and fatigue at 60 there were no injuries for that game.
I then decided to change the injuries back to how it was for my first 6 or so games (I mainly dropped it to 50, since simmed games injuries were out of control, each team had like a dozen or more good players injured) which was at 65.
I am currently at the third quarter of my second game and so far I had three packer injuries and no cardinal injuries yet, so I think it is still the same problem I had with 8min quarters, maybe my game save itself could be bugged.
