nautilus icon disappears from unity launcher

[Ivan Kurnosov]

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.

The opposite is also true: sometimes a Files instance that I have minimised (and which has already disappeared from the launcher) sometimes - appears back.

I cannot determine under what circumstances it happens, but it's more often happens than not.

In the attachment there is a gif file with the problem demostration.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-desktop 1.354
ProcVersionSignature: Ubuntu 4.4.0-11.26-generic 4.4.4
Uname: Linux 4.4.0-11-generic x86_64
ApportVersion: 2.20.1-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Apr 2 17:09:58 2016
InstallationDate: Installed on 2016-02-07 (54 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160131)
SourcePackage: ubuntu-meta
UpgradeStatus: No upgrade log present (probably fresh install)

[jondee (jonathandilks)]

There's also a discussion of the issue on Ubuntu forums here: http://ubuntuforums.org/showthread.php?t=2321285

[Marc Rene Schädler (suaefar)]

Will this be fixed in 16.04 LTS?

[jondee (jonathandilks)]

@suaefar Try reinstalling the 'ubuntu-settings' package and ensure no other 'settings' packages are installed and see if that works :)