I tested this with Ubuntu GNOME 16.04 LTS. The Launch button for Kolourpaint doesn't work with gnome-software 3.20.1+git20160426.1.a976144-ubuntu-xenial-0ubuntu1 (currently in xenial-updates)
But the Launch button does work with 3.20.1+git20160617.1.0440874.ubuntu-xenial-0ubuntu1~16.04.1 (currently in xenial-proposed (If you want to verify gnome-software fixes, be sure to kill the background gnome-software process.) ** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1575529 Title: Some apps not launchable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1575529/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs