NT8 D2D error

[ren37]

Got this today after opening 2nd chart and loading my custom indicator on it.
On one chart 2 instances of my custom indicator work fine.

I used this method to create/recreate DX brushes and to draw http://ninjatrader.com/support/helpG...getchanged.htm

************** Exception Text **************
SharpDX.SharpDXException: HRESULT: [0x88990001], Module: [SharpDX.Direct2D1], ApiCode: [D2DERR_WRONG_STATE/WrongState], Message: Объект находился в состоянии, недопустимом для обработки метода.

   at SharpDX.Result.CheckError()
   at SharpDX.Direct2D1.WindowRenderTarget.Resize(Size2 ixelSizeRef)
   at NinjaTrader.Gui.Chart.Direct2DForm.OnResize(EventArgs e)
   at System.Windows.Forms.Control.OnSizeChanged(EventArgs e)
   at System.Windows.Forms.Control.UpdateBounds(Int32 x, Int32 y, Int32 width, Int32 height, Int32 clientWidth, Int32 clientHeight)
   at System.Windows.Forms.Control.UpdateBounds()
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at NinjaTrader.Gui.Chart.Direct2DForm.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.96.0 built by: NETFXREL2STAGE
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
NinjaTrader
    Assembly Version: 8.0.0.11
    Win32 Version: 8.0.0.11
    CodeBase: file:///C:/Program%20Files%20(x86)/NinjaTrader%208/bin64/NinjaTrader.exe
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1075.0 built by: NETFXREL3STAGE
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
PresentationFramework
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.1080.0
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework/v4.0_4.0.0.0__31bf3856ad364e35/PresentationFramework.dll 

[saltminer]

I'm seeing this error in various indicators (with custom OnRender programming) in Release Candidate 1.
UPDATE. My most recent problem was that accessing a Stroke's BrushDX and trying to use it in OnRender meant it was not using the correct RenderTarget. Using instead the Stroke's brush with .ToBrushDX(RenderTarget) solved the issue.

saltminer