Font differences between KLWP and KWGT

There is a font available in KLWP, but it’s not in KWGT? Why? How do I get it?

First, make sure that both apps have their main storage set to the same folder.

I do. They both use “storage/emulated/0/Kustom”.

The font that is missing in kwgt might have been installed with a live wallpaper from another developer?

Actually, yes, that is most likely the case. You can try to unzip the .kwgt file and see if you can retrieve the font that way.