I experienced the same problems after changing my run flats to non run flats.
But the tyres I put were almost exact diameter so, apparently, that wasn't the cause of the issues. Besides, I put run flats back and it didn't fixed the problem.
I changed the transfer actuator too, but nothing happened.
I was thinking I had to repair or change the transfer but, in a last desperate try, I switch off the transfer for 24 h for a reset (I unplugged the connector under the car) and voila. No more jerking.
If I had tried this first, I wouldn't have spent 500€ in an actuator (fortunately the tyre shop accepted the tyres change without cost because they accepted they put tyres not approved by bmw), and I would know if I can put nonrunflats. Now I don't dare to try the change again.
It's obvious that the tyres change caused the issues but it's also true that the issue didn't disappear putting runflats back. So, maybe I could put nonrunflats just doing the reset just after the change. I would love to know. I loved the ride of the Michelins PS4
Sorry for my English