I don't know if it was just a coincidence, but I developed the putting yips not long after changing from a toe hang Ping Anser putter to a face balanced Odyssey 2 ball. My yipped putts were generally pulled and long, but could be pushed as well. I got to the stage when I could miss 6" putts and going back to the Anser didn't help. I currently putt (quite well) with a semi toe hang Ping Shea putter using the claw grip. The Shea is one of Ping's putters that is supposed to be suitable for a slight arc putting stroke.
like already stated, face balanced putters actually fight to 'open' the face on the backswing so you need to compensate for that which can cause pulls and pushes if you overdo it subconsciously