Hello, With Digikam Version 5.7 is no preview possible. System Archlinux Digikam 5.7 KDE Frameworks 5.40.0 Qt 5.9.3 (compiled against 5.9.2) greeting
ArchLinux + Qt 5.9.3 => problem... *** This bug has been marked as a duplicate of bug 387373 ***
Not reproducible with 6.0.0