MPH Showing Greater Than 0 When Bike is Racked!

Hi all -

I'm having an issue with recorded speed.  My setup is:  1) Edge 520 computer, 2) Garmin Virb Edit software, latest release, 3) Windows O/S.

When dragging the recorded speed control to the video, it is immediately showing 9 MPH but the bike is not moving.  It's racked in a transition area as I am getting my helmet on.  I typically turn on the GoPro after entering transition so that I don't forget.  It takes about a minute for me to transition into bike shoes and put on my helmet before I unrack and run to the mounting area.  When I'm clipped in, I START my bike computer (not turn it on but start recording).  

So technically, the recorded speed should show 0 mph until I'm on the bike and my bike computer has started right?  I see the same behavior with other controls I am interested in such as watts and cadence.

Any ideas?  By the way, I have created and published other videos without a problem.  This just started.

Thanks in advance

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