Well, the crash apparently only occured with Qt 5.13 or lower, as mentioned in bug#404518#c20 . But Plasma 5.19 requires Qt 5.14 as minimum anyway, so it's no wonder why it's not reproducible with that version anymore.
Although I don't know about Qt 5.12.9, the last one I tried was 5.12.7 (as shipped in openSUSE Leap 15.2) where it did still crash. (until the kirigami change was reverted in the distribution package to avoid this crash) -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to systemsettings in Ubuntu. https://bugs.launchpad.net/bugs/1869280 Title: Plasma system settings app crashes when selecting Virtual Desktops menu item To manage notifications about this bug go to: https://bugs.launchpad.net/kirigami2/+bug/1869280/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs