The truly concerning aspect of play selection is when you save your gameplan and have 15 defensive plays selected and use rules based on offensive formations then one game you use 10 or 11 different defensive plays in a game....then you load the same gameplan for the next game...make no changes....and the sim gets locked into a play and uses 1 play for 90% or more of every snap.
I've run into this problem for years (real time) and subsequent games it corrects itself. Their has to be some glitch in the determination of defensive play selection where the sim gets locked on a certain play over and over.
I've had dozens of games over the years where 1 defensive play has been called every play for no obvious or apparent reason....same rules used successfully for many games