Paint.net sometimes crashes with Debugger attached

[ArgusMagnus]

Sometimes when I run paint.net from Visual Studio to debug my plugins, every now and then it gets really slow. And if I use a tool such as the brush in one of these moments (e.g. after opening a large png file) I get an exception. This happens independent of my plugin, if the plugin code is never run.

 

Exception:

System.OperationCanceledException was unhandled by user code
  HResult=-2146233029
  Message=Der Vorgang wurde abgebrochen.
  Source=PaintDotNet.Base
  StackTrace:
       bei PaintDotNet.ExceptionUtil.ThrowOperationCanceledException() in d:\src\pdn\paintdotnet\src\Base\ExceptionUtil.cs:Zeile 221.
       bei PaintDotNet.Rendering.ContentRendererBgra.ThrowIfCancellationRequested() in d:\src\pdn\paintdotnet\src\Core\Rendering\ContentRendererBgra.cs:Zeile 65.
       bei PaintDotNet.Rendering.ContentRendererBgra.RenderComposited(ISurface`1 dst, PointInt32 renderOffset) in d:\src\pdn\paintdotnet\src\Core\Rendering\ContentRendererBgra.cs:Zeile 184.
       bei PaintDotNet.Rendering.ContentRendererBgra.Render(ISurface`1 dst, PointInt32 renderOffset) in d:\src\pdn\paintdotnet\src\Core\Rendering\ContentRendererBgra.cs:Zeile 117.
       bei PaintDotNet.Tools.BitmapLayerToolLayerOverlay`2.OnRender(ISurface`1 dst, PointInt32 renderOffset) in d:\src\pdn\paintdotnet\src\PaintDotNet\Tools\BitmapLayerToolLayerOverlay`2.cs:Zeile 44.
       bei PaintDotNet.Canvas.DocumentLayerOverlay.Render(ISurface`1 dst, PointInt32 renderOffset) in d:\src\pdn\paintdotnet\src\PaintDotNet\Canvas\DocumentLayerOverlay.cs:Zeile 78.
       bei PaintDotNet.Rendering.PassThruRendererBgra.Render(ISurface`1 dst, PointInt32 srcOffset) in d:\src\pdn\paintdotnet\src\Core\Rendering\PassThruRendererBgra.cs:Zeile 40.
       bei PaintDotNet.Canvas.DocumentRenderer.Render(ISurface`1 dst, PointInt32 renderOffset) in d:\src\pdn\paintdotnet\src\PaintDotNet\Canvas\DocumentRenderer.cs:Zeile 77.
       bei PaintDotNet.Canvas.DocumentRenderer.OnCopyPixels[TBitmapLockData](TBitmapLockData dst, PointInt32 srcOffset) in d:\src\pdn\paintdotnet\src\PaintDotNet\Canvas\DocumentRenderer.cs:Zeile 133.
       bei PaintDotNet.Imaging.BitmapSource`1.OnCopyPixels(Nullable`1 srcRect, Int32 bufferStride, Int32 bufferSize, IntPtr buffer) in d:\src\pdn\paintdotnet\src\Core\Imaging\BitmapSource`1.cs:Zeile 28.
       bei PaintDotNet.Imaging.BitmapSource.CopyPixels(Nullable`1 srcRect, Int32 bufferStride, Int32 bufferSize, IntPtr buffer) in d:\src\pdn\paintdotnet\src\Core\Imaging\BitmapSource.cs:Zeile 73.
       bei PaintDotNet.Imaging.Proxies.BitmapSourceProxy`1.CopyPixels(Nullable`1 srcRect, Int32 bufferStride, Int32 bufferSize, IntPtr buffer) in d:\src\pdn\paintdotnet\src\Base\Imaging\Proxies\BitmapSourceProxy`1.cs:Zeile 87.
       bei PaintDotNet.Imaging.ClippedBitmapSource`1.CopyPixels(Nullable`1 srcRect, Int32 bufferStride, Int32 bufferSize, IntPtr buffer) in d:\src\pdn\paintdotnet\src\PaintDotNet\Imaging\ClippedBitmapSource`1.cs:Zeile 69.
       bei PaintDotNet.Imaging.Proxies.BitmapSourceProxy`1.CopyPixels(Nullable`1 srcRect, Int32 bufferStride, Int32 bufferSize, IntPtr buffer) in d:\src\pdn\paintdotnet\src\Base\Imaging\Proxies\BitmapSourceProxy`1.cs:Zeile 87.
       bei PaintDotNet.Imaging.CancellableBitmapSource`1.CopyPixels(Nullable`1 srcRect, Int32 bufferStride, Int32 bufferSize, IntPtr buffer) in d:\src\pdn\paintdotnet\src\PaintDotNet\Imaging\CancellableBitmapSource`1.cs:Zeile 107.
       bei PaintDotNet.Imaging.Proxies.BitmapSourceProxy.CopyPixels(Nullable`1 srcRect, Int32 bufferStride, Int32 bufferSize, IntPtr buffer) in d:\src\pdn\paintdotnet\src\Base\Imaging\Proxies\BitmapSourceProxy.cs:Zeile 83.
       bei PaintDotNet.SystemLayer.Native.x64.Imaging.CBitmapSourceCcw.CopyPixels(CBitmapSourceCcw* , WICRect* prc, UInt32 cbStride, UInt32 cbBufferSize, Byte* pbBuffer)
  InnerException:

[Rick Brewster]

That's not a crash. OperationCancelledException will happen very frequently. Just tell the debugger to ignore it.