Sony did not rip you off. They didn't make the game!! Its on their store but was actually made by a third party company.
Its an unforseen error that seems to have only popped up with the Move patch being released and only effects the Funfair level. They will patch it soon am sure. Even check the developer site to see if they have any info?
Link to the developer website
http://www.idolminds.com/
and the official Pain website
http://www.painthegame.com/index/