Photos are right / left orientation and the 3 D effect does not work.
It appears that photos have to be in a certain orientation depending on the direction of travel.

To test this phenomena sit back about 3 feet and slowly start crossing your eyes.
The center pane that forms would normally be in stereo, not in this one because the photos were reversed

This was taken on a trip from Fort Lauderdale to Atlanta. The time between the two was probably a 1/2 second.
The EXIF data had the same time for both pictures.