[abenedik]

I cannot reproduce your problem.

It works correctly in Paste2Xaml and in a simple application that uses ReaderWmf.

In Paste2Xaml I got the following xaml:

    <Image Stretch="Uniform">
        <Image.Source>
            <DrawingImage>
                <DrawingImage.Drawing>
                    <DrawingGroup>
                        <GeometryDrawing Brush="Green" Geometry="F1M807,379L630,578L407,724L322,471L308,204L569,258z"/>
                        <GeometryDrawing Brush="Green" Geometry="F1M889,0L544,988L1002,1092L318,299L0,643L1029,448z"/>
                    </DrawingGroup>
                </DrawingImage.Drawing>
            </DrawingImage>
        </Image.Source>
    </Image>

The simple test application was:
var readerWmf = new Ab2d.ReaderWmf();
var image = r.ReadGeometry(@"C:\Users\Andrej\Downloads\yy.emf");
RootGrid.Children.Add(image);

But the problem happened when the geometries are combined. With this option it is not possible to correctly generate the xaml.

Cold you please check again.