Face ID stopped working on Reolink Mobile app within the past couple days

diitto

Face ID in Settings on iPhone XS is set up correctly. I see "Reolink" as one of the "Other Apps" requesting to use Face ID. Also in Settings for the APP Reolink itself, that is also OK as it is set to ON for Face ID.

All should be good but within just the past couple days or so, the Face ID feature on the RioLink APP itself has quit working. I can go into Settings with the APP and I see "Unlock with Face ID" and the little carrot to the right that implies "click here to see more" but when I click, nothing happens. And nor does Face ID work any longer with Reolink the APP. I have to enter the password every time I want the APP to open. I just updated my iPhone software a day or so ago to 13.5.1 and the Reolink software also updated very recently if I recall to 4.23.1.1...

But something is broken... I use this APP all the time and up to a day or two ago, the Face ID worked fine. Now, it's gone. Your help???