iOS Google Play Services hang when exiting App

I’m using the Google Play Services plugin from:
https://github.com/playgameservices/play-games-plugin-for-unity

Android version works just fine, but my iOS version has a problem of not completely exiting
the app if I do the Google Play Authenticate; if I don’t Authenticate, then it will terminate
correctly.

There is some assembly code displayed in the Xcode editor about __psynch_cvwait under
callback_queue after I try exiting my app that did an Authenticate.

Everything else about it works fine, Leader Board and Achievements are okay, it just freaks out when
I exit my app using Application.Quit()

Xcode 6.1.1
Unity 4.5.5f1
imported GooglePlayGamesPlugin-0.9.11.unitypackage

has anyone see anything like this ?

Thanks for any help

I have exactly the same issue. Everything in game works fine, apart from this.

Google’s login and leaderboards are fine.

If a player uses the game WITHOUT logging into google+, the game exits normally.
But, if the player logs-in at any time during the gaming session, the game hangs upon exit.

If if they log in and then log out… it hangs, because Social is alive. This is having a seriously bad impact my user’s experience.

Both on Android and iOS.

This needs to be fixed