I'm having the same problem on Gnome-shell 3.18.4 in Ubuntu Gnome 16.04, even after checking on settings to show unpinned icons, the first one launched doesn't appear.
I'm having the same problem on Gnome-shell 3.18.4 in Ubuntu Gnome 16.04, even after checking on settings to show unpinned icons, the first one launched doesn't appear.