Crash reproducible on Arch Linux (plasma 5.12 beta) and neon dev unstable, under Wayland or X11. open system tray settings, click "entries" section check/uncheck "always show all entries" click 'ok" button
Crash reports should have a backtrace, otherwise I've got no idea if it's the same crash as something else or not. You should get a crash reporting dialog after a crash. In any case, I'm 90% sure it'll be this one. *** This bug has been marked as a duplicate of bug 383828 ***
Hi David Arch has no debug package. drkonqi is useless on neon dev unstable, it never installs debug packages and in many cases not even shows up after crash.