Hi
I’m only getting the last screenshot in filmstrip with IOS 5.1 (Dulles location).
Please check:
http://www.webpagetest.org/video/compare.php?tests=140121_MD_88H-r:1-c:1
It could possibly be related to lazy load, but I’m not entirely sure. I’m seeing other strange things like this:
http://www.webpagetest.org/video/compare.php?tests=140121_3K_8GV-r:1-c:1