Created attachment 145739 [details] example of the missing spaces SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. open kde handbook 2. 3. OBSERVED RESULT text formatting broken spaces missing EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION Manjaro Using KDE Frameworks 5.89.0
Which font are configured in khelpcenter ('Settings' menu -> 'Configure Fonts...')? Does it make any difference if you change them?
Created attachment 145809 [details] Fonts for help pages The attachment is what I see
I can confirm this issue. Changing the "sans serif font" from "Noto Sans" to a monospaced font (Luxi Mono) has fixed the issue. This makes the text boxes overflow and causes misaligned highlights but the text is readable.