I will be looking into this. I am reworking the game from scratch now to fix a lot of things provide many times the performance.
It sounds like the issue you mentioned could be a result of game running multiple times at the start. So adding it up multiple times. Could be some slow down or lag issue. If that is the case though i will try to add condition to the game to prevent that from happening. Thanks a lot for reporting the bug ! I will look into it soon once many other issues i am working on is solved.