Downloaded ubuntu-font-family-0.83 from design.ubuntu.com/font.
This bug also affects me on Debian 9.
If I remove Ubuntu Medium, Ubuntu Light renders properly in LibreOffice.
Also, Microsoft Windows displays Ubuntu Medium's font name as "Ubuntu Light."
Downloaded ubuntu- font-family- 0.83 from design. ubuntu. com/font.
This bug also affects me on Debian 9.
If I remove Ubuntu Medium, Ubuntu Light renders properly in LibreOffice.
Also, Microsoft Windows displays Ubuntu Medium's font name as "Ubuntu Light."