Hi,
I hit an endless loop with plasmashell + kactivityd. clearing the last day of history in settings fixes it.
I have backtraces (both end in sqlite), and saved the contents of ~/.local/share/kactivitymanagerd/resources. returning the contents to its original place triggers the issue on my machine.
I’m not willing to post this on the internet, but if a dev is interested and pinky swears to not reshare and to delete after use, I’m open to a 1:1 transfer.