Hi DW,
I've tried to use a custom font on one of our new solutions, and i've gotten as far as to choose the font on the branding page. As you can see below in the image, it show up with the right font.
Screenshots are from a Standard Demo solution, where i have recreated the issue.
But when i want to initialize the branding page by previewing it:
I end up with this template error: https://twodayco3.dw10demo.dynamicweb-cms.com/Default.aspx?ID=203
This only happens when i am trying to use a custom font, google fonts work as intended.
Kind Regards
Martin