testdrive cannot realunch a virtualbox vm

To reproduce set up testdrive with virtualbox backend then download an iso I was on lubuntu desktop i386 then launch the vm then close the vm window. Then click launch again. Nothing will launch. I foudn this when I wanted to double check nothing wierd went on with the first screen starting the live cd.

Workaround close testdrive then launch testdrive again lets you create a new virtual machine.

testdrive:
  Installed: 3.26-0ubuntu1
  Candidate: 3.26-0ubuntu1
  Version table:
 *** 3.26-0ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages
        100 /var/lib/dpkg/status

Description: Ubuntu 14.04 LTS
Release: 14.04

I expected to be able to launch another virtual machine after closing. INstead nothing would launch no matter how many times I clicked it.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: testdrive 3.26-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
Uname: Linux 3.13.0-29-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: LXDE
Date: Sun Jun 22 12:01:32 2014
InstallationDate: Installed on 2013-10-18 (247 days ago)
InstallationMedia: Lubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
PackageArchitecture: all
SourcePackage: testdrive
UpgradeStatus: Upgraded to trusty on 2014-04-18 (64 days ago)