Seems that if you have the `batch mode with time delay` option activated this is incorrectly used also when you ask for a preview scan. STEPS TO REPRODUCE 1. tick batch mode with time delay 2. press preview OBSERVED RESULT The preview operation does not end as it should EXPECTED RESULT A single preview is taken and then the operation of skanlite should go back to normal SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Plasma Version: 5.24.4 KDE Frameworks Version: 5.92.0 Qt Version: 5.15.3