Its still happening on my website, a similar issue to yours. I’ve just checked in Firefox, Opera, Safari, IE 7 and 8, and Chrome and it does it in all browsers. The embedded timeline works about 30% of the time at the moment.
Use to work most of the time…
http://www.blackheathweather.com/
Note: Its happening on my S2 phone as well, along with my Nexus 7 and even on my old XP system used for testing.
I’m just wondering, does a particular doc type declaration have any effect on the embedded timeline? I haven’t changed mine at all but just wondering…