Shutter disappears and has to be quit and restarted when selecting to do a screenshot of "Windows under cursor"

[Wise Melon]

I have recently found that when selecting the option from the Shutter pull-down menu in the AppIndicator area to take a screenshot of "Window under cursor", that instead of doing what it is meant to do, Shutter simply disappears from the AppIndicator area, and even after waiting for around 10 minutes or so, there is still no sign of the thing which allows you to take the screenshot of the window you select. And then the only way to get Shutter back is to End the process, and what I found yesterday was that when I tried to End the process, its status changed from "Running" to "Uninterruptible", at which point I decided to Kill it which worked. And then I just restarted Shutter. Although today I noticed a difference in its behaviour, for it was "Running" until I selected the option, at which point it decided to go into a "Sleeping" state, but when choosing to End it, it ended instead of it going to "Uninterruptible" and me having to Kill it. I am running Ubuntu Gnome 15.04, with Gnome Shell, and Gnome 3.16.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: shutter 0.92-0.1ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4
Uname: Linux 3.19.0-26-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.3
Architecture: amd64
CurrentDesktop: GNOME
Date: Thu Aug 20 10:51:35 2015
InstallationDate: Installed on 2015-07-29 (21 days ago)
InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
SourcePackage: shutter
UpgradeStatus: No upgrade log present (probably fresh install)