I know there is an older thread on this. But here's a "possible" solution.

Yesterday, I had the annual checkup done on my appliances (extended warranty), and the tech was really into talking about d/w detergents and rinse aids. He said they've seen several instances of glasses breaking because of using a rinse aid along with a detergent that already has a rinse aid built in. I told him I thought it sounded far-fetched, but he assured me they had seen it quite a few times, and eliminating the rinse aid solved the problem. Something about the glasses repelling water, and when the heat from the dry cycle hits the glasses they can crack. One of the things he checked on my d/w was the rinse aid dispenser setting. Never knew there was such a thing.