SVG 1.2 Rendering Issues
Oxygen XML Author plugin uses the Apache Batik open source library to render SVG images and it only has partial support for SVG 1.2. For more information, see http://xmlgraphics.apache.org/batik/dev/svg12.html.
This partial support could lead to some rendering issues in Oxygen XML Author plugin. For
            example, if you are using the Inkscape SVG editor, it is possible for it to save
            the SVG as 1.1, while using SVG 1.2 elements (such as flowRoot) inside it.
            This means that the image will not be properly rendered inside the application.
            
Note
SVG images shown in the
                  Author visual editing mode are rendered as static images, without
                  support for animations and JavaScript.
               
            