nautilus crashed with signal 5 in _XReply()

[Pete Misik]

When trying to set the wallpaper, the nautilus crashes.

Ubuntu 16.04 Beta 1
Dell Latitude E6420
8GB RAM
120 GB LiteOn SSD
nVidia NVS 4200M

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: nautilus 1:3.18.4.is.3.14.3-0ubuntu4
ProcVersionSignature: Ubuntu 4.4.0-13.29-generic 4.4.5
Uname: Linux 4.4.0-13-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Mar 18 20:32:02 2016
ExecutablePath: /usr/bin/nautilus
GsettingsChanges: b'org.gnome.nautilus.window-state' b'geometry' b"'890x550+476+190'"
InstallationDate: Installed on 2016-03-18 (0 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
ProcCmdline: /usr/bin/nautilus --gapplication-service
ProcEnviron:
 XDG_RUNTIME_DIR=<set>
 SHELL=/bin/bash
 LANGUAGE=en_US
 PATH=(custom, no user)
 LANG=en_US.UTF-8
Signal: 5
SourcePackage: nautilus
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 XSync () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 gdk_flush () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
Title: nautilus 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)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1071155, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.