In light of the recent media attention surrounding iPhone security I decided to change my phone passcode from the default 6 digit one to an alphanumeric passcode. However, I have encountered a bug in the quick reply feature. Normally, when a user gets a notification on a locked device the notification appears on the lock screen and can be swiped to bring up the quick reply box and keyboard. When I use an alphanumeric passcode, this breaks quick reply and an empty box appears where the keyboard should be. This bug is reproducible. I use a 16 character alphanumeric passcode since I use touch ID to unlock my phone anyways so the long password doesn't bother me. I sent apple feedback, just wondering if anyone else encounters this on their devices. I am on iOS 9.3 and have a 64GB iPhone 6.