MF_E_SHUTDOWN error occurs in some cases when the camera MediaFoundation resources get released. This may happen on unloaded or initialized of the RadWebCam control.
Here is one of the exception stacktraces that may be observed:
Description: The process was terminated due to an unhandled exception.
Exception Info: System.Exception: Stop failed: MF_E_SHUTDOWN
at Telerik.Windows.MediaFoundation.MediaFoundationHelper.ThrowOnHResultError(HResult hr, HResult expected, String message)
at Telerik.Windows.MediaFoundation.BaseMediaFoundationPresenter.StopSession()
at Telerik.Windows.Controls.RadWebCam.<Stop>b__38_0()