I'm trying to use Fonts of the Swiss 721 Family, i.e. Swiss 721 Bd Round for Impress slides.
Problem 1) Although the font is shown in four faces (regular, bold, italic, bold italic) in other programs, libreoffice shows only three
Problem 2) No kerning. while the Font looks normal in other programs, it looks horrible in impress, e.g. the word Test looks like T est, since the e is not moved under the T.
I can forward the font file (SWZ721BR.TTF) by email for debugging, but not as a public visible attachment, since it is a commercial font.
Private forwarding is not a working model.
It might work, if you ordered the bug fix directly from a certified developer: https://www.documentfoundation.org/gethelp/developers/
I have talked to the developers before about reports concerning proprietary fonts in the bug tracker and the consensus is that the reports have to be closed as nothing can be achieved this way.