triplicate panel objects in Plasma

English Applications
#1

Every app opened causes three Plasma panel objects. In the screenshot, only one instance of Konsole is open, and one instance of Spectacle:

https://susepaste.org/60977353

I tried deleting the content of ~/.cache/ while logged out, but that changed nothing apparent. I would try same with whatever file in ~/.config/ controls panel config, if only I could figure out which that is, but no filename there contains string anel. plasmashellrc only contains the following:

[PlasmaRunnerManager]
pluginWhiteList=services,shell,bookmarks,baloosearch,locations

[PlasmaViews][Panel 2][Horizontal1680]
thickness=36

[ScreenConnectors]
0=HDMI-1

[Updates]
performed=/usr/share/plasma/shells/org.kde.plasma.desktop/contents/updates/obsolete_kickoffrc.js

:stuck_out_tongue:

Is this a known problem with a known solution? Searching for various combinations of panel and kde and/or apps and/or icons, etc. on opensuse.org and kde.org produced nothing related I was able to spot.

#2

Found https://userbase.kde.org/Plasma/Panels/en and solved by deleting plasma-org.kde.plasma.desktop-appletsrc.

https://susepaste.org/24447624 has the bad file, and the new file, and a diff of the two. I’m having no luck determining where the problem with the original lies. Can anyone else?