First post here.
I'm using Inkscape 0.91 on Mac OS X 10.11.6 and don't seem to be able to get my symbols to appear correctly. I installed these additional symbol packs: https://github.com/Xaviju/inkscape-open-symbols now when I drag a symbol onto the page, it just shows as a white box.

Does anyone else have this issue? Did I install these new symbols wrong and disrupt something? Any feedback appreciated!