shows a red exclamation-mark error sign, but no detailed information

[teo1978]

When I plug in a given USB stick, at random times a red exclamation mark shows up next to it as can be seen in the screenshot (I mean, sometimes it does, sometimes it doesn't, with the very same usb stick). That, I guess, indicates there's some issue with the disk. However, neither hovering nor clicking on the icon shows any details about the error. It's like "There's some issue: go figure".

There should be a way to see detailed information about what the issue is.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: usb-creator-gtk 0.2.67ubuntu0.1
ProcVersionSignature: Ubuntu 3.19.0-32.37-generic 3.19.8-ckt7
Uname: Linux 3.19.0-32-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.7
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Nov 14 19:06:27 2015
InstallationDate: Installed on 2013-10-11 (764 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: usb-creator
UpgradeStatus: Upgraded to vivid on 2015-08-15 (90 days ago)