Anyone else notice on the 2012 D

Has anyone else noticed on the 2012 D pennies that the out millimeter or so of the background (the part that is usually flat) is warped, almost like the metal didn't spread out correctly when it was struck and it looks like ripples? I've compared them to the nice shiny 2011's and they have a perfectly flat background. Actually, comparing them to multiple years I can't see anything like it on other pennies.
All the 2012 D's that I have in my current load of pennies seem to have this same "defect?" Anyone else have the same?
DFM
All the 2012 D's that I have in my current load of pennies seem to have this same "defect?" Anyone else have the same?
DFM