Please fix the "content" dropdown when setting up a/b campaigns, so content is listed MOST RECENT to OLDEST, not the other way around (content currently shows oldest first).
It's how it used to be (even earlier this week) and it's significantly more functional than almost accidentally sending out an email from 2015 because it's in the "most recent" spot.
Note: it looks to be correct in regular (non a/b) campaign setup.
