Audio Annoucements Not Playing on iPhone

A few days ago all three of my Ring Video Doorbells stopped giving me "there's motion at your door" announcement on my iPhone. First time in two years. I've double checked phone notifications settings, rebooted the app, deleted and reinstalled the app multiple times, turned the phone off and back on, double checked ring device settings and sound, WIFI works, etc. The cameras still detect motion and the playback has sound and there's sound as well on the Live View, just not the audio "motion at the back door" on my phone. Thoughts?