After installed new font ,I can't find my new font in GanttProject

Hi Dear Support
like title said I can’t find my new font in Gantt Project, but I sure I’d install font in my computer 。
and I think Gantt project no load my all windows font ,becasue I can’t find other some font that windows has installed .
my os : win11
I’d tried restart my computer.
thanks you very much

Where do you want to use this font?

HI Dmitry
Because I export pdf my font will strange ,Because I use Chinese , So I need change my font .
Thanks your reply~