I'm experiencing this behaviour on 2 separated machines (in a virtualbox vm and physically installed on another laptop):

Sometimes after I start the Files Gnome application - its corresponding button disappears from the Unity Launcher couple seconds after it's started. So if I minimize the application - I have no chance to close the application rather than killing its process with kill.

That's how it looks like:

enter image description here

Has anyone else experienced it? Is it a bug or some tricky configuration option?

If it's a bug - where should I report it?

PS: I've filed a bug for that https://bugs.launchpad.net/ubuntu/+source/ubuntu-meta/+bug/1565194

  • Looks like a bug to me. All bugs are reported at bugs.launchpad.net/ubuntu. Of course, Ubuntu 16.04 is not officially released until April 21, 2016, so I am not sure how they would handle any bugs yet. – Terrance Apr 2 '16 at 4:04
  • @Terrance "so I am not sure how they would handle any bugs yet" --- yep, that's why I asked. But let's see if the report is replied with anything useful anyway. – zerkms Apr 2 '16 at 4:26
  • I agree. Hopefully they can get it fixed then before the release. =) – Terrance Apr 2 '16 at 5:15
  • Looks like Nautilus simply crashes. I am pretty sure icons on your desktop (if any) will disappear as well. What you could try is remove ~/.config/nautilus, immediately log out, and back in. – Jacob Vlijm Apr 2 '16 at 6:21
  • 1
    Ah, I see, that kills my theory :( Really think it is a Unity bug then. – Jacob Vlijm Apr 2 '16 at 6:30

I had the same issue. I just upgraded from ubuntu 14.04. Resolved by removing files from the launcher then draging it from the dash to the launcher again


It does work as anas has said but after doing so right click it and open a new window.

If you do not open a new window what happens is if you click the one in the dash a second icon will appear and then it will disappear when you close out of the opened one from the dash. No arrows will appear next to the one you dragged from the dash.

Once you have right clicked and opened a new window arrows will appear next to the one dragged from the dash.


It is a bug. As a workaround:

  • Unlock "Files" from launcher if it is
  • Open a terminal (or ALT+F2)
  • Enter nautilus
  • Lock that newly spawned launcher to panel
  • Well, my bug report was prior to that :-) – zerkms Jul 11 '16 at 21:44

Hello I can recommend you to try out plank dock where you can pin your current windows/ programs and few others.

I am personally not using dash at all, just having it hidden, mac style macbuntu

  • 1
    Sorry, but irrelevant. – zerkms Apr 29 '16 at 0:14

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