Hello,
A kunena post (journal/element/20167) is breaking the stream appearance :
http://awesomescreenshot.com/06736hcp3b
After removing this post, the stream page look good again :
http://awesomescreenshot.com/03836hbw27
Impossible to reproduce this except by cancelling the remove of the post, and having it again in the stream...
It's a new topic posted in kunena
something gone wrong when plugin creating stream enter ?
before that, everything was ok with others kunena posts and again with new post now after removing...
i'll continue to check in the future and let you know if it happen again
Loïc