Had to reset network settings on RX585... Airplay issues cutting out, amp unresponsive to app – AV CONTROLLER - US Review

I’m not sure if it was introduction of Airplay 2 or what is going on, I’m using Ethernet (no WiFi adapters) straight to my AirPort Extreme AC. There is been no firmware updates to the Extreme? I can Airplay fine to my ATK 4K HDR to my bedroom TV w/music streaming apps, but amp cutting in & out, static and volume jumping. I reset network setting on amp even though firmware up to date? Then day or so later this app update comes, receiver back acting the same way? Thing is it was even playing from my Network local storage via Ethernet and it was jumping songs, same static, cutting in & out, volume unresponsive from iPhone 8 Plus running iOS 12.2? I reset network settings on the amp again and it resolved itself. Turning on & off amp, resetting AirPort Extreme did nothing. Only manual resetting my RX 585 7.2 Network Receiver fixed, but I can’t tell if it was introduction of this app update or something suddenly wrong in my receiver. Horribly upsetting either way and nearly blew out my vintage English speakers. I’ve used nothing but Yamaha receivers since 1990. I’m praying it’s your firmware or iOS app software still has bugs because it was fine until recently and updated iOS 12.1.2 to 12.2. It might be fine now, was last night but awfully coincidental your app comes in and it was working after one manual Network setting reset, then I update and back to acting the same? I did it again after update and noticing behavior return again? Worked for now but perhaps advise network resets if your app is going to throw my iPhone app in to a run away unresponsive train. I have thousands of dollars in speakers to protect.
Review by kevk74 on AV CONTROLLER - US.