https://bugs.kde.org/show_bug.cgi?id=381266
--- Comment #6 from Ross Williams <gunzy8...@gmail.com> --- (In reply to Kai Uwe Broulik from comment #5) Thanks for the info. That approach sounds like a better solution to the regex based approach. As you say the StartupWMClass and WM_CLASS are a match so it should be working: StartupWMClass=crx_gaedmjdfmmahhbjefcbgaolhhanlaolb WM_CLASS(STRING) = "crx_gaedmjdfmmahhbjefcbgaolhhanlaolb", "Google-chrome" One more observation for you: the correct icon shows during launch then switches to being grouped under the chrome icon. Not sure if that indicates anything? I ran the searches that you suggested and nothing appeared out of place. I have pasted the output below: find /usr/share/applications/ -name *.desktop | xargs grep StartupWMClass /usr/share/applications/libreoffice-draw.desktop:StartupWMClass=libreoffice-draw /usr/share/applications/libreoffice-startcenter.desktop:StartupWMClass=libreoffice-startcenter /usr/share/applications/libreoffice-base.desktop:StartupWMClass=libreoffice-base /usr/share/applications/libreoffice-impress.desktop:StartupWMClass=libreoffice-impress /usr/share/applications/libreoffice-writer.desktop:StartupWMClass=libreoffice-writer /usr/share/applications/libreoffice-math.desktop:StartupWMClass=libreoffice-math /usr/share/applications/google-chrome.desktop:StartupWMClass=Google-chrome /usr/share/applications/google-chrome.desktop:StartupWMClass=Google-chrome /usr/share/applications/google-chrome.desktop:StartupWMClass=Google-chrome /usr/share/applications/sublime_text_3.desktop:StartupWMClass=subl3 /usr/share/applications/Discord.desktop:StartupWMClass=discord /usr/share/applications/libreoffice-calc.desktop:StartupWMClass=libreoffice-calc find ~/.local/share/applications -name *.desktop | xargs grep StartupWMClass /home/rwilliams/.local/share/applications/chrome-apdfllckaahabafndbhieahigkjlhalf-Default.desktop:StartupWMClass=crx_apdfllckaahabafndbhieahigkjlhalf /home/rwilliams/.local/share/applications/chrome-fhbjgbiflinjbdggehcddcbncdddomop-Default.desktop:StartupWMClass=crx_fhbjgbiflinjbdggehcddcbncdddomop /home/rwilliams/.local/share/applications/chrome-blpcfgokakmgnkcojhhkbfbldkacnbeo-Default.desktop:StartupWMClass=crx_blpcfgokakmgnkcojhhkbfbldkacnbeo /home/rwilliams/.local/share/applications/chrome-pjkljhegncpnkpknbcohdijeoejaedia-Default.desktop:StartupWMClass=crx_pjkljhegncpnkpknbcohdijeoejaedia /home/rwilliams/.local/share/applications/chrome-gaedmjdfmmahhbjefcbgaolhhanlaolb-Default.desktop:StartupWMClass=crx_gaedmjdfmmahhbjefcbgaolhhanlaolb /home/rwilliams/.local/share/applications/chrome-aohghmighlieiainnegkcijnfilokake-Default.desktop:StartupWMClass=crx_aohghmighlieiainnegkcijnfilokake I also tried clearing the ~/.local/share/applications directory of .desktop files, deleted my Chrome profile and reinstalled Chrome just to get a fresh environment and I am still suffering the issue on a fresh profile (not logged in). I'm going to have a look at the code myself when I get some time (use the ABS in Arch to build my own copy of plasma-workspace) but I have one question from a cursory glance at the code so far: In terms of these two if blocks: if (services.empty()) { services = KServiceTypeTrader::self()->query(QStringLiteral("Application"), QStringLiteral("exist Exec and ('%1' =~ StartupWMClass)").arg(appId)); } if (services.empty()) { services = KServiceTypeTrader::self()->query(QStringLiteral("Application"), QStringLiteral("exist Exec and ('%1' =~ StartupWMClass)").arg(xWindowsWMClassName)); } I assume xWindowsWMClassName maps to WM_CLASS but what does appId refer to? Thanks your help. I understand it is hell trying to debug something you can't reproduce :( -- You are receiving this mail because: You are watching all bug changes.