Studio theme - activity column shifted to the right after update

Hi guys, I've just updated to the latest version of studio and I noticed one of the new features was to add a 'left margin' - however this update isn't working for me on our site, in fact it's just pushed my buddypress pages about 50px to the right and is chopping part of it off.

Is there some code I can add to my stylesheet to override this feature and push my columns back in place?