Found an issue when converting an existing site built in Foundry from RW7 to RW8.
In RW7 the site continues to work as expected, but in RW8 it raises an exeption on export (attached below).
I pinpointed it to one place, and the recipe is simple and as follows…
New project
1 stacks page
1 base foundry stack
Change the base font in the base foundry stack to any Google font.
Try and preview page.
This raises this exeption in RW8, while the same recipe works as expected in RW7.