First off you'd think Microsoft would make this easier than it is (i.e a big site that says post a bug). Office 2013 is very buggy.
The bug, when editing excel tables and editing the series name by clicking between quotes (not a cell selected name) it won't change after the update.
also, when naming scatter plots by selecting cell values in excel (an awesome feature) and then bringing it into an older version (2010) of power point or excel the labels become [value]. Nothing like giving a presentation with stupid error labels in your nice chart. Again, props to the test team at office.