Recently updated from Fedora 30 to 31 and with that came Konsole 19.08.2 and with this new version, when running Konsole using --background-mode and pressing the "Toggle Background Window" shortcut, Konsole will reappear but the tab visible in the window isn't active and requires a mouse click, the creation of a new tab, or if multiple tabs already exist, switching between them
Operating System: Fedora 31 KDE Plasma Version: 5.17.4 KDE Frameworks Version: 5.64.0 Qt Version: 5.12.5 Kernel Version: 5.3.15-300.fc31.x86_64 OS Type: 64-bit Processors: 12 × AMD Ryzen 5 3600 6-Core Processor Memory: 15.7 GiB of RAM