In order for the cruise to work you have to first grab and engage your front brake. This is a safety setup. This has to happen after every time you start the bike. Which 9 times out of 10 I was doing, but on the occasion I could not get it to work I apparently had not engaged front brake.
So I now get in the habit of engaging front brake upon every start up. Problem solved.
I have a unit on route to Canada (tomorrow I hope), bottom mount with dongle patch, total cost was 700 CAD including shipping and another 107 for tax and brokerage fees so in total 807 CAD.
I ordered it on Saturday evening and it's scheduled for delivery tomorrow. Not bad, Melbourne Australia to Montreal Canada in five business days.