@erwin1974 – Thanks for the report, think we got a solid plan for the next minor update (1.22). We are still ironing out kinks from 1.21, but here is a rough recap of what we’re planning. Pretty solid long term solution.
In the mean time, simply disabling/deleting the popup themes using those fonts, or updating them to use system fonts will fix it for you as well. We suggest deleting any your not using or at least marking them draft which prevents their css from being added to the file.
