vlc opens a big trasparent window selecting Help->About

[corrado venturini]

The problem does not happen on same PC different partitions running Xenial-GNOME or Wily or Trusty.
I opened a ticket on VLC https://trac.videolan.org/vlc/ticket/16364 but was closed as nonvlc.
In the attached screenshot I moved the window of Screenhot leaving the funny trace You can see.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: vlc-nox 2.2.1-5
ProcVersionSignature: Ubuntu 4.3.0-2.11-generic 4.3.0
Uname: Linux 4.3.0-2-generic x86_64
ApportVersion: 2.19.3-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Jan 13 20:38:45 2016
ExecutablePath: /usr/bin/vlc
InstallationDate: Installed on 2015-12-18 (26 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151209)
SourcePackage: vlc
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[corrado venturini (corradoventu)]

problem disappeared after last updates.

[corrado venturini (corradoventu)]

problem appeared and disappeared for no reason(?) also in ubuntu 16.04 Unity.

[fabianbur (fabianbur)]

The problem persists and affects calibre and VLC. Today I did a clean install of ubuntu unity in a real machine, not virtual machine and the problem is the same.

[Ed Algeo (nostromo17)]

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: vlc-nox 2.2.1-5
ProcVersionSignature: Ubuntu 4.3.0-2.11-generic 4.3.0
Uname: Linux 4.3.0-2-generic x86_64
ApportVersion: 2.19.3-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Jan 13 20:38:45 2016
ExecutablePath: /usr/bin/vlc

vlc either crashes on open or if the main window stays open then the playlist window opens and cannot be resized and appears blank although if one opens a group of files 'with' vlc one can play them using main window if the playlist is left closed