I don't know which Standard of SVG is implemented in Ristretto.
When I saw the same issue in Gwenview I did some searching and found that the Qt library only implemented the SVG 1.2 Tiny standard, which doesn't support the clipping path feature.
More info from the KDE/Qt side: https://bugreports.qt-project.org/browse/QTBUG-28636 https://bugreports.qt-project.org/browse/QTBUG-28636
So, still not sure if this is the same cause of problem for Ristretto.
I don't know which Standard of SVG is implemented in Ristretto.
When I saw the same issue in Gwenview I did some searching and found that the Qt library only implemented the SVG 1.2 Tiny standard, which doesn't support the clipping path feature.
More info from the KDE/Qt side: /bugreports. qt-project. org/browse/ QTBUG-28636 /bugreports. qt-project. org/browse/ QTBUG-28636
https:/
https:/
So, still not sure if this is the same cause of problem for Ristretto.