[Connect C++] center view while drawing doesn't update raster image

I am using the ExampleCreateTool example to draw a line and center the view as you draw.  My issue is with raster imagery that will not fully update as it re-centers the view.  Here is the code

/*---------------------------------------------------------------------------------**//**
* @bsimethod                                                              Bentley Systems
+---------------+---------------+---------------+---------------+---------------+------*/
bool ExampleCreateLineStringTool::_OnDataButton (DgnButtonEventCR ev)
    {
    if (0 == m_points.size ())
        {
        _BeginDynamics (); // Start dynamics on first point. Enables AccuDraw and triggers _OnDynamicFrame being called.
        EnableUndoPreviousStep (); // Enable Ctrl+Z notification to undo the previous data point.
        }

    m_points.push_back (*ev.GetPoint ());
    SetupAndPromptForNextAction ();
    CreateAcceptedSegmentsTransient ();

	IndexedViewportP  vp = ev.GetViewport();

	if (!vp)
		return false; // Sub-classes may ascribe special meaning to this status, it's not checked by DgnViewTool.

	DPoint3d  centerPt = *ev.GetPoint(); // The DgnButtonEvent point is always ACTIVE coords.

	vp->ActiveToRoot(&centerPt, &centerPt, 1); // Need point in ROOT coords for new zoom center (ACTIVE != ROOT when a reference is activated).
	vp->Zoom(&centerPt, 1.0, true); // Change the frustum for this viewport by tje supplied scale factor, does not update the view.
	vp->SynchWithViewInfo(true, true); // Add entry to view undo stack so that view previous can nr used to get back to the current view.

	IndexedViewSet::FullUpdateInfo  info;

	info.SetStartEndMsg(true); // View tools should output progress/display complete messages...
	IViewManager::GetActiveViewSet().UpdateView(vp, DRAW_MODE_Normal, DrawPurpose::Update, info); // Update the display by doing a full update.

    return false;
    }

Also here is a video showing the issue

https://ray-westwoodps.tinytake.com/tt/NTE0NjkzOV8xNjEzMjU2Mg