Usually the issue itself is quickly resolved, either you give your opponent a new round of combat (or whatever phase is effected) or not. But it problem is twofold, it slows down the game and if your opponent remembers the special rules after the game it can taint the result, which if you won can sour your victory.
|Knowing your army special rules can win you the game|
Thank you for reading reading my ramble. Until next time