Is this a cold or a heat assist laminate? If heat assist then you could be getting a little more chemical reactivity then you would with the cold. And a distortion can take place over night. It's happened to me; just not in the last 8 years or so. Out-gassing could also be the problem. Just because your media is dry to the touch doesn't mean it's finished shedding the emulsifiers/propellants in your inks.
I think we need so more details from you.