hi everyone i have made 3 checkerboard cakes using the circle cutters. everyone of them seem to fall apart or crumble when cut. anyone know how to fix this probkem or why it happens?

ADo you have an example you could show us? Or tell me how it is you are assembling the checkerboard. Is it fondant on buttercream, fondant on fondant, rolling the colors together to make one piece, etc?