Looks like the photon part in core isn't quite correct. It doesn't have groups breadboardbreadboard in breadboard and schematic in schematic. Normally that doesn't affect much except svg export, but in this case may be the cause of your problem. In the part below I added the two missing groups (without testing anything more than seeing it still loads and has red dots on connections though 
) so try replacing your photon with this and see if that works.
Photon_fixed.fzpz (38.5 KB)