Pressing F9 on album starts slide show. If the slideshow reaches video files it displays this on blank, black page: An error has occured to show item ....file_name It dos not matter which video file format to play. Just the same occurs for mts, avi files. digikam previews the video files just fine. Reproducible: Always
*** This bug has been marked as a duplicate of bug 159824 ***
digiKam 5.4.0 will add video support in Slideshow, through QtAV framework (instead Qt5::Multimedia). Gilles Caulier