@Olican &
@JessThePlasterer asked a similar question:
Why have BG boards become so fragile?
What you may be noticing is a change to natural rock, away from synthetic rock and the characteristics are different. It shouldn't give you difficulties but it will feel different to boards in the past.
We try to balance board flexibility for the different types of stud you might fix onto and our boards are designed to withstand typical use without breaking. If you're having difficulties we need to have the product back to understand the fault, so that we can investigate. If you could keep a sample of the product and take a picture of the code on the back of board, email us your contact details and location we will investigate.