You started the 4th quarter winning for more than 20, when it happens all the starters leave the court. It always happened in this way and it's well known. If you wanted your guards play all the minutes, you should have had only 8 players in the game. All experienced players know that and the engine is suppossed to work in this way, so it's not a bug. If you think the system should be changed, then use the suggestions forum, please