Surface cracks 2-3 months into aging

[Dorchestercheese]

I have a Gouda that had some superficial surface cracks after 3 months of aging. It's sister eaten at 2 months had no cracks. 2lbs size. Did it dry too quickly after brining or is the cave too dry?

[AnnDee]

Either the cave to dry or, if it cracked straight after or during brining, the brine is too acidic.