I'm using a TransitionControl that transitions to a view which uses a RadialGauge with a RadialScale that has IsInteractive set to True. Whenever I load that view, a COMException is thrown with HRESULT 0x88980406. Seems to be related to bitmap rendering in some capacity. The exception is one that appears to be a known bug in .Net, but previous versions of RadControls haven't had this issue.