I have this issue as well. (multiple youtube embeds on one page).
How to reproduce:
– issue seems to appear only on Chrome. IE and FF are ok.
1 Visit page with multiple oEmbed videos
2 visit another (any) page
3 press “Back” button
4 ALL oembeds pick up and display the LAST of the videos on the page (last as in rndered in html source, not display)
