There's a glitch in the process of recharging energy cells that ticks me off. Let's say you waited 6 hours since your last time you played and you used all of your energy. The recharging process normally takes 4 hours per game. So the extra 2 hours should be accounted for when you enter the game right? Wrong! Instead of the time being at 120:00 it's at 241:36. I tried and tested my theory so many times. Always when you have extra waiting time, it cannot be carried into the next session when your energy is 1/3 or 2/3 of the way full. You have to monitor the app closely to make sure it gets all your energy.