SUMMARY kfontview displays nothing when started. When changing the main drop-down, a popup appears displaying the text "Could not read font." STEPS TO REPRODUCE 1. Open kfontview 2. 3. OBSERVED RESULT No fonts are displayed EXPECTED RESULT Fonts displayed SOFTWARE/OS VERSIONS Linux/KDE Plasma: Debian 11 (available in About System) KDE Plasma Version: 5.20.5 KDE Frameworks Version: 5.78.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION System-wide font settings: All font types selected to use "Noto Sans 14 pt", except the "Fixed width" font, which is set to Hack 14 pt". Anti-aliasing enabled, sub-pixel rendering RGB, Full Hinting, Force font DPI: 168.