Thanks to one of our awesome players, we've confirmed an error when attempting to change your Card Backs in Solitaire Deluxe. We've also narrowed down that this issue is only occurring on certain iPad devices. If you have been experiencing this issue, rest assured resolving this in a timely fashion is one of our highest priorities. If you're having trouble with this error, or you have any other questions or concerns, don't hesitate to contact us at firstname.lastname@example.org. Thanks for playing!