Mailbox Sensor not Triggering Recordings on my Ring Doorbell Cam

I have just installed my Ring Mailbox Sensor, and linked it to my Ring Front Doorbell. When I did so, the "Record" camera icon came up, which I selected, and it now says "Record Event," however, I have had many activities on my Mailbox (a mail delivery and many tests) which show up in the app and "Event History," but none of them are recorded. The only Events in the History are "Motion Detected" and "Stopped detecting motion".I have attempted to put the Mailbox Sensor in a Group with some of my Ring Smart Lights as they show up as Linked Devices on my Ring Doorbell, but the Ring Mailbox Sensor does not, yet that has not fixed the problem. As the Ring Doorbell seems to recognize the Ring Lighting, and offers me the ability to link them, but doesn't show the Mailbox Sensor, I looked to add it, but it isn't listed, only Alarm, Security Cameras, and Locks and Accessories (which doesn't include the Mailbox Sensor). I also do not want to place it in a Group with one of my Smart Lights because they are on timers set to work during the evening, and I want the Mailbox Sensor to work 24/7. Surely I can't be the only one this is happening to am I?