Launcher icon not shown when application is open

[Siddhanathan Shanmugam]

Screenshot attached. Also, I'm using a pre-released version of Unity.

Empathy is running but clearly there is no icon in the launcher. The icon seemed to have disappeared after a while.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: unity 6.2.0-0ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-13.13-generic 3.5.3
Uname: Linux 3.5.0-13-generic x86_64
ApportVersion: 2.5.1-0ubuntu3
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
Date: Wed Aug 29 23:32:43 2012
DistUpgraded: 2012-07-25 04:36:54,906 DEBUG enabling apt cron job
DistroCodename: quantal
DistroVariant: ubuntu
GraphicsCard:
 NVIDIA Corporation G86M [Quadro NVS 150M] [10de:06ea] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Toshiba America Info Systems Device [1179:0001]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: TOSHIBA TECRA M10
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-13-generic root=UUID=1b0aca55-ce40-411d-936a-aa1b0079c9ce ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: Upgraded to quantal on 2012-07-24 (35 days ago)
dmi.bios.date: 11/13/2008
dmi.bios.vendor: TOSHIBA
dmi.bios.version: Version 1.80
dmi.board.asset.tag: 0000000000
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Version A0
dmi.chassis.asset.tag: 0000000000
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: Version 1.0
dmi.modalias: dmi:bvnTOSHIBA:bvrVersion1.80:bd11/13/2008:svnTOSHIBA:pnTECRAM10:pvrPTMB3E-00T00DAR:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
dmi.product.name: TECRA M10
dmi.product.version: PTMB3E-00T00DAR
dmi.sys.vendor: TOSHIBA
version.compiz: compiz 1:0.9.8+bzr3319-0ubuntu3
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.38-0ubuntu2
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0~git20120821.c1114c61-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0~git20120821.c1114c61-0ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.12.99.905-0ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120713.6ef1ad6a-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.3-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-4~ubuntu1

[Launchpad Janitor (janitor)]

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