Anyone ever had this?

It's popped up 3 times. First time dealer reset. Second time they replaced valve lift solenoid. Now it's back, just after CPO expired. Porsche has agreed to cover since it started before the end of the warranty, about 6 months ago, and all oil changes were on time and documented. They are looking for a clog in the oil system and having to tear down one side of the motor. A search found this code on other Porsches, but few on Cayennes.