After updating to KIO 5.41, all items under "Recently saved" and "Search" on the Dolphin places sidebar are duplicated. It only happens in Dolphin itself, not in the file chooser.
could you attach your ""~/.local/share/user-places.xbel" file?
Created attachment 109370 [details] user-places.xbel
Thanks for the report. I can confirm that, and what is causing that is: The KIO model now supports balloon urls and it create new ones if there is no entries while starting it. Since the balloon entries from dolphin is marked as "<OnlyInApp>dolphin-places-panel</OnlyInApp>" it will be invisible for KIO model and it will create a new one. Then when running dolphin it will show the duplicated entry. I am thinking how to solve that in acceptable way.
https://phabricator.kde.org/D9333