The panel is unable to spawn "exo-open" commands anymore: exo-open: Unknown option --launch TerminalEmulator. exo-open: Unknown option --launch WebBrowser. And that's with the default config. I suspect this is a regression introduced by rev. 28562
Confirmed. Workaround : The problem seems to be the number of args. If I replace "exo-open -launch MailReader" by a script which calls "exo-open -launch MailReader" it works
Jup was not a good fix, we now quote commands when selecting an application.