launcher icon doesn't update properly in ubuntu 14.04

[Michał Tabor]

So I have just upgraded from 13.10 to 14.04 and noticed a bug. It didn't affect the 13.10. In some applications, when I try to open a new window, a new arrow is not added to the application's icon.
Example:

I'm opening a files window.
http://i.stack.imgur.com/ZgSIY.png
Files window is opened. Icon shows in the launcher with one arrow meaning that there is one window of this application open.
http://i.stack.imgur.com/LEczr.png
I'm opening a new files window. After opening the window, no new arrow is added to the launcher icon. It shows one arrow, meaning there is one window open, while there are two windows.
http://i.stack.imgur.com/PW59L.png

Closing windows doesn't update an application icon as well.
Arrows are updated after clicking the an application icon.

So far, I have noticed this bug in Files and Google Chrome (when opening new application window, or when new window is opened by clicking a link).
Opening new Terminal works all right (new arrows appear and hide as the window is opened or closed).

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: compiz-core 1:0.9.11+14.04.20140409-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Mon Apr 21 13:16:54 2014
DistUpgraded: 2014-04-18 07:33:51,284 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7550M/7570M/7650M] [1002:6841] (prog-if 00 [VGA controller])
   Subsystem: Sony Corporation Device [104d:90ab]
InstallationDate: Installed on 2014-04-17 (3 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Sony Corporation SVE1512P1EB
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=07adf10d-2429-45a5-9fee-aff002b9374f ro quiet splash vt.handoff=7
SourcePackage: compiz
UpgradeStatus: Upgraded to trusty on 2014-04-18 (3 days ago)
dmi.bios.date: 03/19/2013
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: R0180D5
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnInsydeCorp.:bvrR0180D5:bd03/19/2013:svnSonyCorporation:pnSVE1512P1EB:pvrC10FM6ZL:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: SVE1512P1EB
dmi.product.version: C10FM6ZL
dmi.sys.vendor: Sony Corporation
version.compiz: compiz 1:0.9.11+14.04.20140409-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Mon Apr 21 10:04:27 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs: Output HDMI-0 LVDS VGA-0
xserver.version: 2:1.15.1-0ubuntu2
xserver.video_driver: radeon

[Launchpad Janitor (janitor)]

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