Our used case is in-app screen sharing.
Few of our customer have reported the problem while using this sample app, that ReplayKit throws -
"Recording interrupted by multitasking and content resizing" error and the in-app recording does not start.
I was able to reproduce the problem once on iOS 12.2, iPad Pro 12.9 inch 2nd gen during the multitasking.
Here is the code which starts the in-app recording which causes the problem - https://github.com/twilio/video-quickstart-swift/blob/master/ReplayKitExample/ReplayKitExample/ViewController.swift#L343
Once it gets into the problem it never recovers. I used the suggestion from https://forums.developer.apple.com/thread/109696 suggested doing "Reset All Settings", I tried and the problem went away. I haven't seen problem yet but "Reset all settings" is not ideal.