Idk if it's bugged or intentional. Game clearly intends for you to be semi-active taking advantage of fast training charges for progress. And it gives the impression that you have 2 charges of fast training. Yet I tab out to find that not only it deletes my second charge of fast training, my timer reverts to the slow training, so tabbing out completely wastes the one thing meant to let you progress faster. Honestly this is the kind of bug that needs to be addressed on the double as it will cause people to write off the game entirely as a negative.