Ring Contact Sensors Disappeared from Alexa App

A couple of months ago I installed ring contact sensors on my closet doors and created routines in Alexa to turn my closet lights on and off when the sensor is open or closed. This worked great until 3 days ago. When I checked the routines in Alexa I no longer see the contact sensors as devices. I checked the Ring app and they are still there and configured. I tried re-adding them to Alexa but the app does not find them. I tried removing one of them from ring, resetting the sensor and the. Re-added it but it didn’t change anything. Anyone know what might have caused this or better yet how to resolve it?