I keep all of my comics in bags and board, and the IDW and comic pack comics seem to warp and wrinkle the plastic of the bags, so badly that it affects the bag of the comic infront and behind it. I thought maybe it was from the thicker paper used on the covers, but none of my other comics with cardstock quality covers do this to the bags. Does anyone else have this issue? Is there some sort of weird chemical reaction between the ink used and the plastic? Anyone store them in bags/boards of a specific brand and doesn't have this problem?

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the only thing I can think of is did you leave them in the car - heat can make the bags wrinkly, but I'm pretty sure it doesn't effect the comics...

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Nah, nothing like that. I just keep them in the bags/boards in a comic box, with no temperature extremes.

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