https://bugs.kde.org/show_bug.cgi?id=493849
--- Comment #4 from Johannes Zarl-Zierl <johan...@zarl-zierl.at> --- Ok, I was probably off with my previous comment. I've looked at the code now and my guess is that you have the backend set to QtAV from your previous installation, but that's not available in your current setup when the following check is reached: https://invent.kde.org/graphics/kphotoalbum/-/blob/4f4c4104dfeac1dddcc0c0a4e030e9f535c1b003/Viewer/ViewerWidget.cpp#L1371 -> So the code should not only select a backend if no backend was configured, but also if the backend was configured to an unknown or unavailable value. The most straightforward fix is probably to set unavailable backends to NotConfigured in SettingsData.cpp. -- You are receiving this mail because: You are watching all bug changes.