I use the card repeat power up. I tried to change a date on the repeat, but when I did so and clicked save, the save went gray, a rollover of the save button shows a circle with slash through it, and the only option I have is to click "x" in the top right and cancel the change. I tried deleting the card and adding a new one, and the same behavior prevents me from setting the repeat date to begin with. I tried restarting the app, and got the same behavior.