compiz crashed with signal 5 in _XReply()

[Anca Emanuel]

I downloaded this https://www.dropbox.com/sh/b8q1rcon5srs3l7/AACiok8UO4aB6jCxTifcaeA7a/Siluro.zip
Watch some photo, used rotation, then close without save.
Next, PC freeze for a few seconds, compiz crash.

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: unity 7.3.0+14.10.20140711-0ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-6.11-generic 3.16.0-rc7
Uname: Linux 3.16.0-6-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.5-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Aug 3 22:58:42 2014
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2014-04-05 (120 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140404)
ProcCmdline: compiz
Signal: 5
SourcePackage: unity
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 XGetWindowProperty () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 XGetClassHint () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 ?? () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with signal 5 in _XReply()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 XGetWindowProperty (dpy=0x1f1b9b0, w=65011719, property=property@entry=67, offset=offset@entry=0, length=length@entry=8192, delete=delete@entry=0, req_type=req_type@entry=31, actual_type=actual_type@entry=0x7fff225f4db0, actual_format=actual_format@entry=0x7fff225f4dac, nitems=nitems@entry=0x7fff225f4db8, bytesafter=bytesafter@entry=0x7fff225f4dc0, prop=prop@entry=0x7fff225f4dc8) at ../../src/GetProp.c:69
 XGetClassHint (dpy=<optimized out>, w=<optimized out>, classhint=0x7fff225f5060) at ../../src/GetHints.c:311
 ?? () from /tmp/apport_sandbox_KuOrF1/usr/lib/compiz/libunityshell.so
 unity::decoration::ForceQuitDialog::ForceQuitDialog(CompWindow*, unsigned long) () from /tmp/apport_sandbox_KuOrF1/usr/lib/compiz/libunityshell.so
 unity::decoration::Window::Impl::ShowForceQuitDialog(bool, unsigned long) () from /tmp/apport_sandbox_KuOrF1/usr/lib/compiz/libunityshell.so