iOS Crashing on resume

I’m testing “interruption handling” (ie: someone calls you mid-game) on my latest creation - WinPhone and Android are fine, but iOS crashes a few seconds after trying to resume - the game screen is displayed, but the game does not restart and after a few seconds it closes.

As far as I can see, there are no exceptions being thrown, and nothing is being logged in the application output.

I tried updating to the latest dev build (3.3.0.2286) - however, this appears to be broken as a call to UIApplication.SharedApplication.Windows[0].RootViewController in Game1.Initialize is now returning null, whereas previously (build 3.3.0.2103) this worked.

I also looked at how I had handled this in my last iOS Monogame release by using Game.HandleGameResumedEvent etc. but these methods are not available in either of the aforementioned builds, so I’m guessing that these have been completely replaced by the Game.OnActivated etc. event handlers.

Can anyone advise? Thanks!