Crashes constantly

Its really a nice app, very easy to create simple Lego models, save them etc. However, every time I use the app, after 1-2 minutes it just crashes and I lose the work I had done.
I wish it was fixed so I could enjoy the app. Besides that, some nice improvements would be offering more options of bricks to build and adding a picture from the camera roll as the background image.

O_Analista about Bricasso, v2.2