Same problem here. I submitted a new app. It was first rejected due to a design issue. I corrected the indicated problem and then it was approved but subscriptions were stuck at "Waiting for review". In the subscriptions menu there is a message saying "A subscription has been returned and is highlighted in the table below." and there are exclamation marks near subscriptions however their status is in waiting for review and there is no message about rejection or it lets me change anything. I believe when the app was first rejected subscription status turns to rejected and then when app is approved they are somehow forgotten and now stuck in a weird status.