Some SVG files will turn up blank
Some icons in my set will turn up as blank canvasses. I dropped some example files below that are not showing up. For the set below, only the milk, pig and chicken will show, the rest are blank artboards with nothing inside.

![screen shot 2018-01-11 at 12 45 17](https://user-images.githubusercontent.com/4254711/34824082-53f10508-f6cd-11e7-974c-228ccc77bdc8.png)


[my-icons-collection-23.zip](https://github.com/AMoreaux/Sketch-Icons/files/1622364/my-icons-collection-23.zip)
