Unable to use scroll bar in captured packets view

I have recently found that on Ubuntu GNOME 15.04 running GNOME 3.16 that in WireShark in the view where it shows the captured packets and allows for you to select them that if on attempts to scroll using the scrolling bar that the bar does not even change its colour to show that it has been selected and instead the packet in the list behind it is selected instead, and it appears that no matter what I do I cannot use the scroll bar in that section to scroll anywhere, though the other scroll bars seem to work fine, but they are not the disappearing ones (the ones that disappear when you are not mousing over them).

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OS Information:

    No LSB modules are available.
    Distributor ID: Ubuntu
    Description: Ubuntu 15.04
    Release: 15.04
    Codename: vivid
    Flavour: GNOME
    GNOME Version: 3.16

Package Information:

    wireshark:
      Installed: 1.12.1+g01b65bf-4+deb8u2build0.15.04.1
      Candidate: 1.12.1+g01b65bf-4+deb8u2build0.15.04.1
      Version table:
     *** 1.12.1+g01b65bf-4+deb8u2build0.15.04.1 0
            500 http://archive.ubuntu.com/ubuntu/ vivid-updates/universe amd64 Packages
            500 http://archive.ubuntu.com/ubuntu/ vivid-security/universe amd64 Packages
            100 /var/lib/dpkg/status
         1.12.1+g01b65bf-4 0
            500 http://archive.ubuntu.com/ubuntu/ vivid/universe amd64 Packages