Elevation graph not rendered when g-metrix hidden on initial video

When I create a movie that shows the g-metrix for the entire timeline, no problem with the output.

However, if I hide the g-metrix only on the 1st video in the timeline, the exported movie will show all metrics except the elevation graph.

Anyone one else have this issue?  I sometimes put some intro video that isn't actually part of the activity, and this will happen.  

It will also happen this way...  Within the 1st video file, my activity starts 15 secs in.  If I export everything as is, no problem.  But I don't actually like the metrix to show -- in the 1st 15 secs when i haven't started my activity yet.  So I split the video file so that I can hide the g-metrix in the 1st 15 sec and it start showing only when there are actual numbers showing.  In this case the same thing happens - all metrics are shown except the elevation graph.