Unity's top panel stops responding to grabbing, double and middle clicking after an application is closed to indicator (like pidgin)

[TomasHnyk]

Binary package hint: unity
How to reproduce the bug:
1. Open an application that closes to indicator (like liferea, pidgin, rhythmbox, banshee, empathy and others)
2. Close said aplication (it does not really quit but instead runs and is accesible from the indicators).
3. Maximize another application
4. Try to grab or double click the top panel to unmaximize the application or try to middle click it to switch to another application

What happens: Grabbing, middle clicking and double clicking the top panel does not work

What should happen: It should work.

This is on Ubuntu Natty, up-todate, on Lenovo Thinkpad T500 (Intel graphics, if it is important).

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.8.12-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,place,gnomecompat,snap,move,grid,mousepoll,vpswitch,imgpng,resize,wall,regex,session,animation,winrules,expo,workarounds,ezoom,staticswitcher,fade,scale,ring,unityshell]
Date: Thu May 12 21:01:02 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_US.UTF-8
 LC_MESSAGES=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)

[DeadVirus (amfcosta13)]

I think I've found the problem.

If I have an app like Pidgin maximized and then close it, but it keeps running (like pidgin does, or thunderbird if you have a "close to tray" add-on), the top bar will stop responding to window actions like slide and double-click to restore window, middle-click to minimise, etc...

It also happens with Banshee, when you close it while it is playing (but only if it was maximized).

[TomasHnyk (sup)]

Updated descriptin, summary and set to confirmed based on DeadVirus hints.

[BlueCase (bluecase)]

Hello,
i have the same problem.
But when I set the relevant window (e.g. Liferea) from maximised to window view and close it then to tray, grabbing for all other applications again possible.

regards,
Marco