I had a hem seam come loose during its first wash on a UK. Believe it was a poly cotton original. Cost me $10 for the seamstress at the dry cleaner to sew it back up and we had a nice chat. She was Navajo but had been to Scotland.

Is it a new UK or one from back when they were contracting out the sewing?

And if you didn't notice it chances are the inspector who inspected it before shipping didn't either.

Hopefully, the new crew at UK will stand behind the defect.

Ron