I just noticed that on my system there are some fonts that are installed (and loaded) in one font version and just loaded in another version. On the MainType 4 screenshot, you can see that there are TTF and OTF versions side by side:
That’s strange enough, but then I tried to export the OTF versions only, as I couldn’t find the associated font files. What I got were four TTF files with the TTF versions of the fonts, see the MainType 3 screenshot:
So now I have fonts inside my MainType 4 library that I can’t export. Aren’t my fonts as safe as I thought? At least it’s not what I expected when I read statements like
Yes, I read your E-Mail, thank you very much for your proposal, and sorry for the delay - I was really busy the last days because a customer of mine had a major problem with his online shop that had to be fixed ASAP.