Missing on off button font/icon/glyph in gnome-control-center after upgrading from stretch to buster

Question

I recently upgraded a Debian Stretch installation to Buster using the official guide. I just noticed I'm missing some font/icon/glyph on the on/off switches in gnome-control-center. Where the icons should be it shows 23F0 for on and 2858 for off. I tried a couple things, but nothing solved my issue.

• reinstall gnome-control-center sudo apt install --reinstall gnome-control-center
• rebuild the font cache sudo fc-cache -f -v
• Changed the fonts in gnome-tweak.

How can I solve this problem?

Answer 1

Run apt-get update && apt-get upgrade, today some of the updated packages fixed this issue.