Pass and Play


I don't know exact details for the iOS app, but they have made the same changes in the android app, and now the "pass and play" is under the "More" option. So you can't change both the players to human when you select to play against computer. You'll have to select the pass and play seperately.
That's how it is on the android app now and I guess it will be similar for the iOS. So just look around, I'm sure you'll find it.

Support message follows:
Hello Martok,
Thank you for contacting Chess.com support. I'm here to help.
I sincerely appreciate you for bringing this to our attention, Martok. Since this is just a new update we are in the process of improving some features including the play a computer option in iOS and your feedback is important for us to pinpoint the necessary improvements that we need to make.
I have also personally shared your experience with our developers so we can immediately apply some fixes on this as soon as possible. Rest assured that you'll see positive improvements in our app and site soon!
Thank you for your patience and understanding, Martok. If you have questions or need additional assistance, please feel free to reach out.
Regards,