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While I've never had the problem with any of the swampers I've ran, I hear that some have a problem with the sidewalls separating. That might be what you have going on there. Contact whoever you bought them from and see if they'll replace them.
the tire says 1997 in the second pic.if thats the build date they probably won't honor it.if the tire shop kept them around that long i'de say its their fault.i have read in jp and petersons that the swamper sx and others will get scary sidewall cracks if driven on the highway a lot at the wrong tire pressure