In the open/save dialog, if you enable "Allow expansion is Details View", then you reopen the open/save dialog you will always get "Show Preview" option in toolbar disabled, even if you re-enabled it will always be reset. Operating System: Manjaro Linux KDE Plasma Version: 6.2.4 KDE Frameworks Version: 6.9.0 Qt Version: 6.8.1 Kernel Version: 6.11.11-1-MANJARO (64-bit) Graphics Platform: Wayland
I can reproduce this on Fedora KDE 41, same KDE/Qt versions.