What are you trying to enter? Most information is set on the Identification tab. As the Extended tab says, “Note: In general it’s best to leave these naming fields empty.”
I have never had a reason to use them, and don’t honestly know how I would use them. I have some fonts with more than four sub-families.
There are good reasons to enter information on that tab. I too have periods where the information is not saved. Usually a reboot of the computer enables the info to be saved. But not always. Sometimes after a reboot when it doesn’t work, exiting and restarting FC makes it work again.
This was never an issue in the early release of version 10 nor in previous versions if I recall.
No matter what you enter for “Typographic Family” and “Typographic Subfamily” on the “Extended” tab of the “Font Properties” dialog, it reverts to whatever was there before.
This means that you can’t set these for a new project (where they start out blank) and can’t change them for an existing project. This also means that any font imported from .TTF or .OTF can’t have these values changed. It doesn’t appear to be specific to a particular font or file, but I have attached one that definitely fails, just in case.
This may not seem like a big deal, but for me, it’s huge, as one of the primary things I do with FontCreator is rename fonts to bring them into a more consistent naming style. Belwe-Regular.otf (40.1 KB)