Created attachment 128566 [details] Showcase of disappearing left pane SUMMARY I am almost sure this is a bug in Kirigami framework. Nevertheless, I observed it in KDE Connect app, so a bug report wouldn't hurt. STEPS TO REPRODUCE 1. Open an app 2. Window shows two panes beside each other 3. Resize/shrink, so that left pane becomes what is called a "hamburger menu" 4. Press X to close the hamburger 5. Resize back to wide window, until hamburger button (an icon at top left) hides OBSERVED RESULT Left pane is not accessible, hamburger icon is invisible. EXPECTED RESULT Left pane should come back; or at least hamburger icon must disappear. SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.6.12-arch1-1 (available in About System) KDE Plasma Version: 5.18.5-2 KDE Frameworks Version: 5.70.1-1 Qt Version: 5.14.2-2 KDE Connect: 20.04.0-1 ADDITIONAL INFORMATION