Instantiate Parameterize step doesn't change with new profile
Step 1: Go to "Start Experiment".
Step 2: Hit "Next" on the "Select a Profile" step to get to the Parameterize step (so that you pick the openstack profile).
Step 3: Realize you messed up and wanted a different profile, so you go back and select a different (not openstack) profile.
Step 4: Hit "Next", and see the Parameterize step still shows all the Openstack parameters.