Ring Doorbell Two Way Talk Not Functioning

We are having an issue with several iOS devices (iPads and iPhones) where we intermittently can’t hear people at the doorbell, and they can’t hear us talking into the iOS device at the doorbell. We are having this problem with an older Ring Video Doorbell 3 and a brand new Ring Doorbell Battery Plus that we purchased to try and solve this problem. We are pressing the buttons in the app to enable two-way talk and we have allowed microphone permissions in the app. This was working fine for several years up until about two weeks ago. We can make the audio work temporarily if we restart the iPad and or cycle the app’s microphone permissions off and then on again on the iPad. Restarting the doorbell doesn’t help. I just now tried disabling Bluetooth on the iPad and this did make it work - not sure if this will keep it working or if it’s still going to stop functioning again in an hour or two. There were not currently any Bluetooth devices connected to the iPad when the issue was occurring, however. We have tried factory resetting the iPads we are using and confirming iOS and the Ring app is up to date with the latest version from the App Store. We have also tried resetting the wireless networking devices and rebooting and doing factory resets on the Ring doorbells. We even bought a brand new Ring Doorbell Battery Plus to see if that would resolve the issue, but it didn’t. At this point I am fairly certain this is a software bug, either due to an iOS change, a Ring firmware update, or a Ring app update, but I wasn’t able to get anywhere with Ring support. Is anyone else having this issue?