Anyone here used UICloudSharingController? Delegate not working correctly

I'm completely stuck on this one 😟


I'm just presenting a simple UICloudSharingController and set the delegate.


Even though my itemThumbnailData and itemTitle delegate methods are called (I can see from debugger) but they take no effect.


The controller still shows the screen with "Untitled" and place holder image. Why?


Further more, cloudSharingControllerDidSaveShare is also not called back when I click save.