On your thursday scrimmage, your starter SG --> 6 PF.
On your last week scrimmage, your coach filled the court with your back ups at the beginning of the 4Q. If you choose "follow strictly...", there is a bug. It looks like a "Depth chart until 4th" behavior. I suggest you check your orders in the "former matches" drop down menu in "set your line up" so to make sure you didn't make any mistake.