USB pen containing install image not recognized in files as it was in Luna

[Stinger]

I create my USB pen containing the live install image of elementary using the dd command.
In Luna these USB pens where mounted, visible and browsable in Pantheon Files in Freya they are not.
I can see that the pen is mounted in /dev as sdb but it doesn' show up in Files.

[Stinger (e-mindahl)]

ProblemType: Regression
DistroRelease: elementary OS 0.3
Package: pantheon-files 0.1.5.1+r1574+pkg34~ubuntu0.3.1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 3.13.0-33.58-generic 3.13.11.4
Uname: Linux 3.13.0-33-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64

CurrentDesktop: Pantheon

InstallationDate: Installed on 2014-08-12 (0 days ago)
InstallationMedia: elementary OS 0.3 "Freya" - Daily amd64 (20140810)
LANG=da_DK.UTF-8
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Jeremy Wootten (jeremywootten)]

Confirmed to the extent that USB memory sticks do not appear mounted in FIles sidebar, unlike other file managers. They do however appear as an unmounted drive which can be mounted and opened by clicking on the bookmark.

[Jeremy Wootten (jeremywootten)]

Please confirm whether this is still an issue in Loki - thanks.

[Launchpad Janitor (janitor)]

[Expired for Files because there has been no activity for 60 days.]