I'm not quite sure.. I mixed two gapps folders into the rom, so that could have been it. Or Play Store version 3.9.17 isn't supported within the market files that were already in the CM base rom. I don't know.. But it's fixed now!
Any chance you could add a2sd datasd to a2sd. I used that in another similar Rom and the internal space was hardly touched. From what I was reading a2sd 2.7 beta 5 has the command added. This version that is installed has very few commands that are available.
Are you wanting to move data to the sd card? If so, that's not recommended. Your apps will go crazy..