Ring Android App Issue - managing YALE ASSURE Lock 2

Yale Assure lock 2 is installed and working with zwave. In the Android Ring app; Locks and Access Control; Lock Access; I have successfully added guest user 1. When returning to that menu later, there is no option presented to "Manage Users"....it is blank at the bottom. I can delete that user, and then return and add multiple guests (Manage Users is presented), but once you leave, you can never go back and add users a second time. This work fine on the web app. This needs to be fixed by development team for Android app. thx.