https://bugs.kde.org/show_bug.cgi?id=359567
--- Comment #11 from Thomas Lübking <thomas.luebk...@gmail.com> --- It's probably this rule: Description=Football Manager 2016 blockcompositing=true blockcompositingrule=2 clientmachine=localhost clientmachinematch=0 wmclass= wmclasscomplete=false wmclassmatch=1 Notice that "wmclass" is empty. (This also means that spotify resp. CEF illegally change the class after mapping the window ... *sigh*) => try to disable that rule and see what happens. -- You are receiving this mail because: You are watching all bug changes.