I got my call back today and there have been no reported issues with lot XKL. Sharon asked if I was reporting issues with it. I have no pitting on any of the bolt faces the primers have been used in and have never noticed any evidence of a leaky primer. I was simply calling to verify if that lot had reported to be problematic. She repeated that it is not a lot that is known to have issues but to call her back and let her know if I experience some.

“There are three things all wise men fear: the sea in storm, a night with no moon, and the anger of a gentle man.”
― Patrick Rothfuss, The Wise Man's Fear