If I select unread-messages in the quick-filter, akregator starts to mark all messages unread, message by message. See video: http://m-berberich.de/Diverses/Akregator-1.avi Akregator-Version is 5.2.2 KDE Frameworks 5.23.0 Qt 5.6.1 (compiled against 5.6.1) The xcb windowsystem Reproducible: Always Steps to Reproduce: 1. activate quick-filter 2. select unread messages 3. watch
*** This bug has been marked as a duplicate of bug 350731 ***