I faced problem only on iOS. When I use Facebook or Google OAuth login SDK, called `SFAuthenticationSession` to open login UI.
The situation is when user click ‘login’ button, the UI will be opened and then closed in second. Seems it was be cancelled. But if user click login button again, the UI will be opened normally.
I traced log but there’re only messages like `constraints warning`. No other impactful error.
The project is built by Unity so it’s hard to trace. Is there any other guy faced this strange situation when adopting these SDK? It works normally on Android.
I thought if the problem caused by complex objects in Unity scene or caused by NGUI library.
Thank you.
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