Which SVG renderer are you using? Inkscape, RSVG delegate or Imagemagick MSVG/XML. 6.9.7.4 is rather old by version. What is the date associated with the version. Show us the results of
Also check
and look at the line for SVG. What does it list (for the renderer) at the end of that line?
Using Inkspace with Imagemagick 6.9.10.14 Q16 Mac OSX, it works fine. Using the Imagemagick MSVG/XML renderer if does not snow the letters. Using the RSVG delegate with Imagemagick also works fine.
So I think you likely need to install either Inkscape or the RSVG delegate.
If you just install Inkscape on your system it will be used automatically if your version is 6.7.9-0 or higher.