Gnome3 and Unity do not honour application's tray icons requests when started via "Startup Applications"

[Aoi Michiko]

If an app is added to the "Startup Applications" applet (so it is started during login), Gnome3 (and Unity) do not add that the icons to the system tray icons when it starts on login. However, if starting it normally, after login process is complete, the icons do appear. Previous Gnome version worked fine, and this was not an issue in Natty or Maverick. This only started occuring when Gnome3 (and Unity) started to be used.

NOTE: this issue also occurs in Gnome3's Gnome Classic.

Examples of apps where this has been seen: Skype, TweetDeck.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome (not installed)
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Sun Nov 6 09:37:02 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: meta-gnome3
UpgradeStatus: Upgraded to oneiric on 2011-10-22 (14 days ago)