Commenter name/e-mail not saving

I am using Simple Catch with a child theme on two websites and have discovered that when readers leave comments, their name and e-mail information is not being saved via a WordPress cookie the way it should be, meaning they have to type it in each and every time they want to leave a comment. It definitely has something to do with the Simple Catch theme, because I switched to TwentyThirteen and the name/e-mail information was saving properly. I deactivated all plugins but the issue remains. Is there something in the Simple Catch theme that could be interfering with the WordPress cookie? Any thoughts? Thanks.