Support of OTF (XITS) font in OO Document Server


we have trouble for installing the free XITS font (as OTF) with our OnlyOffice Document Server. We used the same commands like in the script.
It seems that the font is installed and can be used in the OO Editor. But, when inserting special character like Unicode 1D05 only an empty square appears. It seems, that ordinary characters are displayed and printed corretly, but a lot of special characters are not working despite the fact, that the XITS font has a proper implementation.


Document Server version: 8.0
OS: Debian 12
Browser version: all

Hello @Volker

Is it possible to share a font that you are referring and record a small demo on how do you insert special characters for the reference?