In away mode, alarms instantly on back door open, but not on front door open

Our Ring system has a magnetic sensor for both the back door and front door. In away mode, if we come in the back door, the alarm goes off instantly, as soon as the door opens. If we come in the front door, the system allows 60 seconds for entry. In the Ring app (desktop version, in Chrome browser), in Settings/Modes/AwayModeSettings, EntryDelay is set to 60 seconds. How do I make the sensor for the back door conform to the EntryDelay setting?