Tor Browser: Fonts of the GUI (Menu, Bookmarks, ...) do not render after Update

The following image say it all:

• the web pages are rendered normally
• every text of the Browser (menu, bookmarks, popup about, a.s.o) are broken

My system: Fedora release 33 (Thirty Three).

The version of the browser should appear on the picture.

The system has been updated and rebooted after the issue appeared (today).