maybe I missed something, but I removed the forced qt3support USE on dev-qt/qtgui:4 and dev-qt/qtcore:4 in the spotify-0.9.17.1.ebuild and spofity *worksforme*. sorry, if I'm wrong. Reproducible: Always
Created attachment 400166 [details, diff] spotify-0.9.17.1-r1.ebuild.patch
I'll remove it for now, and readd it if complaints come in.