After my daily reading I press the little heart, takes me to my journal to save my reading, save, and on going back to main screen the heart is not gray and it still shows the back of the card. It takes closing the app and opening it again for it to show the card and the heart in gray. When synching in other two devices, I sync, reading appears in journal but card doesn't show till I close the app and reopen it. Nothing too serious but a bit of a fuss... Love the new moon animation BTW! The three devices run different android versions.