Ok, so I initially was getting this on ALL of my blocks but realized that Concrete doesn't like spaces in the Area name. That took care of all of the pages, except for the ones where dynamic custom layouts are concerned. Upon creating a layout you end up with an area name like this in the database:

Main : Layout 2 : Cell 4

But after much research and even upgrading to Concrete 5.6.0.2 I know that there can't be spaces for this to work correctly. I need this fixed ASAP as we are on a tight deadline. Any help would be greatly appreciated.