After using spread minimized windows open blank

[Doug McMahon]

test case:
Open 2 different windows, like nautilus & a terminal, minimize both
Go to spread, (Super+W
Pick one window
Open the remaining minimized window by clicking on launcher icon or choosing in alt-tab switcher
It opens blank

Noting there are other variations to cause & this also affects unity-5.12 from proposed

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.10.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
Uname: Linux 3.2.0-23-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu6
Architecture: i386
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,place,mousepoll,gnomecompat,commands,move,session,vpswitch,regex,dbus,animation,text,fade,resize,cube,expo,scale,workarounds,rotate,ezoom,scaleaddon,unityshell]
Date: Sat Apr 28 22:10:48 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120407)
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Doug McMahon (mc3man)]

marking invalid as no longer an issue in unity 5.12

[Doug McMahon (mc3man)]

I'm going to undupe for the moment but can't re-mark as new. I somewhat mistakenly marked as invalid without fully exploring why it isn't an issue here.

I believe & can duplicate at will that this is caused by the animations plugin, With it enabled then bug as described.

With it disabled then it no longer occurs, any min'ed window restored after spread is fine
(can supply short vid's demonstrating with & without the animations plugin enabled

The reason here for having it disabled is believe it can lead to an 'out of the blue' performance breakdown, often seen by a break in smooth scrolling in gedit, nautilus, ect. & other area's

[Daniel van Vugt (vanvugt)]

Spread is done by the "scale" plugin, which is part of compiz-core.