SUMMARY Shortly after launching Plasma 5.16 beta, some part of Plasma either crashes or hangs. Hitting shortcuts like Ctrl+Esc or PrintScr seems to trigger that issue sooner. User-visible problems so far are: KSNI systray icons vanish, Ctrl+Esc, PrintScr, etc. no longer work. There's no crash error message. I tried running plasmashell from terminal an on occasion I get QQuickItem::stackAfter: Cannot stack StatusNotifierItem_QMLTYPE_288(0x55766e4bd070, parent=0x55766d6e8400, geometry=0,0 0x0) after StatusNotifierItem_QMLTYPE_288(0x55766dd3f790), which must be a sibling after a while. SOFTWARE/OS VERSIONS Linux/KDE Plasma: openSUSE Tumbleweed, x64, all updates as of 19 May 2019. (available in About System) KDE Plasma Version: 5.15.90 KDE Frameworks Version: 5.57.0 Qt Version: 5.12.3 ADDITIONAL INFORMATION X11 session
*** This bug has been marked as a duplicate of bug 407614 ***