I have no idea how I didn't notice and thank God I wasn't going regimental....

I washed a number of my UKs over the weekend and some how didn't notice that one of the seams in the pleats had totally ripped and I now had a slitted skirt (for lack of a better phrase). I noticed it after riding on 2 different subway trains and stnding in line for my coffee this morning. It was the first time that this one had been washed and it totally ripped up the side. I have more UKs than I care to admit and I've never had this happen before. It's on a Tan Survival.

I'm going to call them today and see what, if anything, can be done about it or if it is a defect/design flaw on this one.