This functionality had been working. On a MacBook air so I would add a font to FontBook, verify it, then quit and restart Lunacy. And, as if by magic, the new font would appear in the list. I usually add fonts in batches of 3+ to see which works well with my design. The last 2-3 batches are not showing in Lunacy. They are in FontBook, but not in Lunacy.
The App Store version doesn’t currently offer beta updates. Please download and re-install Lunacy directly from our website: https://lcdn.icons8.com/setup/Lunacy.dmg Then, enable beta updates Help → About → Check for Beta Updates → Install.
Remember to uninstall the old version beforehand. Let us know if you are still experiencing issues after updating.