I figure the core Warmachine players will have the answer to this. It concerns when PP released the packs of color stat cards for the factions.
Are those cards only a reprinting of the black and white ones? Or, do they have gaming fixing errata changes to certain units (such as Bloat Thralls?)?
Then after that did they, maybe a year later, release a 2nd set of color stat cards with more errata and new units and so forth?
I was discussing War at Sea with someone, there's some issues with the stat cards, and talk went to how PP did the color stat cards. I'm not too familiar with that aspect and thought I'd turn to those in the know.