It's always been slow and laggy while saving but now it completely crashed and I lost my days work. I have the latest patch and only since then have I had crashes. I had one also in Halloween maze.
Yeah, sadly the game crashes a lot for me too. In all honesty I have only ever closed down the game legitimately twice. The rest of the time I stop playing when it crashes. It usually crashes for me after I have spent the whole day in Skull Cavern so that makes it even more annoying.