I have never seen a replacement leak. It is not that uncommon to have the 2016-2017 possibly some 2018's crank seal leak. This is a guess, looking at the above pic, the seal has shiny rub marks on it. I think that the factory seal installing process did not get the seal in straight. Over time the crank tooth gear end was contacting the seal. The seal leaked from being installed not square in the plastic housing. The contact may have helped it to leak. Every leaking crank seal that I repaired was worn in the same area. Some were covered during the 4/50 and CPO, others were past the 4/50 and customer pay.