I use Pagelines (ofcourse) and also the Video SEO plugin from Yoast on multiple websites.
I discovered that my RSS Feed (summarized version) was not working anymore, and after a lot of testing these are my findings.
With the Twenty Twelve theme activated and the normal WordPress SEO + Video SEO plugins activated the feed works in my browser:
In Feedvalidator it says that is 'does not validate', however, it works as mentioned above. This is the error in feedvalidor.org:
Conclusion: feed works with Twenty Twelve theme and WordPress SEO + Video SEO installed.
However, the warning mentioned above does dissapear when I deactivate the Video SEO plugin....
Next testing fase, with only the normal WordPress SEO plugin activated I switch to the pagelines theme.
Feed is still working in the browser and also on Feedvalidator.org is 'valid', but it gave some recommendations:
At this point I also activated the Video SEO plugin again, and then the feed stops working... :-(
So there seemes to be a conflict with Pagelines and the Video SEO plugin, I hope you can help me get it solved.