The Adobe System appears to be working, and the project/fonts are listed in my Webflow settings interface but only one of them appears in the Webflow Designer interface list.
I’ve gone through every possible step to correct, multiple times, completely redone all settings multiple times, and waited numerous hours between retesting. Nothing seems to work for this particular font (Proxima Nova). I had the same issue with Adobe’s Copperplate Gothic font. Is it a known issue for particular Adobe fonts to not work in Webflow?
Found this to be a solution that worked for me: