Created attachment 183206 [details] A font consisting of 66 decorative glyphs from https://www.fontsquirrel.com/fonts/Nymphette I installed this ttf font and when I opened KCharSelect to review the glyphs for this font, if I changed the first of the two dropdowns, (scripts & character sets - the UI is very mysterious about what those actually mean). If I select 'all', the application becomes unresponsive and must be killed. For some fonts, like Nymphette, changing the character set can also crash it. It works better with more traditional fonts, such as IBM Plex Sans, crashing when 'all' is selected. I admit, I haven't tried all combinations of scripts & sets for all my fonts, as It takes a while to recover, set-up and try but it crashes reliably every time I select 'all' for the fonts I've tried. Dump attached