Navigation Transition

Hi guys, I was in a bit confuse on transition animation. Well the scenario is after my app loads and after i click to go to another page it doesn’t have any transition animation but when I go back again to the same page and click again the same button the animation this time works… I just found out the animation does not work in the first try but when the page is already in the history the animation works… Anybody who can help me with this?