Im using a BusyIndicator within a Viewbox that binds IsBusy to the ViewModel.
To activate the IsBusy a Click Event on the control causes a GoToState behaviour where the control grows in size by scale.
ie (0.1) -> 1 in 1 second.
That click event also causes a async command to fire (3 sec or more) in the ViewModel that sets IsBusy and NotifiesPropertyChanged.
Problem is the BusyIndicator does not show.
If I click on the control again (now that it is full size) then the busyindicator shows perfectly. It seems to be a problem while changing state.