So I figured I'd give this game a shot after watching the QL.  About 45 minutes in, I get to the forest area and it asks me to build a factory.  I hit RB to bring up my blueprints...hard lock up.  Restart my system.  Try again.  Same thing.  Try a third time.  Same thing.  So I travel back to the ice town, RB...blue prints.  I just can't use RB in the forest area.  Anyone else had this issue?

No lock ups for me, but I have had slow downs. Snow from A Kingdom for Keflings was the worst. I'm not sure how to fix your problem. Sorry.

The best thing I can suggest is deleting the game from your hard drive and re-downloading it. Maybe clearing you cache. I've seen this suggested for lockups in other downloadable games. It seems weird that consoles with locked hardware can have things like this happen and be different for different users.