message in GUI is "could not find the KGraphViewer part", on console it's: kf5.kxmlgui: cannot find .rc file "kgraphviewerui.rc" for component "kgraphviewer"
Ran with guix shell --no-grafts because there is some gosh darn bug with grafts again and even though both this and Krita report as OK on the CI dashboard, users have to build dozens (no an exaggeration) of packages on their own machines.
