Norcold 1210 with replacement cooling unit propane blows out on the road

I had an older Class A a long time ago that the flame for the fridge would blow out going down the road. Pretty consistent but worked fine when parked. We usually ran the genny so I never bothered to research it. I just figured it wasn't a huge deal and the wind was the culprit. I had another class A of a similar model that it never blew out. Since then all my RVs have had electric fridges.