Gnome DIsks crashes powering off drive

I have two IDE drives that I'm accessing through a USB caddy that I've wiped and zeroed using shred, and re-formatted to NTFS, after which I rebooted my PC.

If I insert the USB cable the drive mounts and appears in DIsks as normal. If I hit choose the "Power Off" option then Disks crashes with a Segmentation fault.

Restarting Disks shows two instances of the affected drive, one saying "No Media" in the partition image and the other containin the correct partitions. Note that the "no media" one does not show a location (such as /dev/sdb).

Restarting the computer is the only way to clear the problem up.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gnome-disk-utility 3.10.0-1ubuntu3
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Aug 9 14:28:42 2014
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/gnome-disks
InstallationDate: Installed on 2013-05-03 (462 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-disk-utility
UpgradeStatus: Upgraded to trusty on 2014-05-21 (79 days ago)