Unicode characters in Private User Areas display wrongly

I defined Chinese characters in unicode private user areas, notepad and MS Office Word could display correctly, but LibreOffice Writer displays wrong characters. I read the bug report, but there is no folder mentioned in the report like [C:\Program Files\OpenOffice.org 3\Basis\share\fonts\truetype] in LibreOffice 6.3.1 now.
Is there a way to set LibreOffice to load correct End-User-Defined Character (EUDC)?

What had been fixed in tdf#33898 could had been broken again later. But prior to filing a bug about it, please test if putting the font (renamed to have .ttf extension) to a newly created fonts\truetype directory under Program Files\LibreOffice\share.

It worked by putting the font in the folder(Program Files\LibreOffice\share\fonts\truetype). Thank you very much!