It has happened to me twice on my E350 chassis based 2021 Thor Axis. The second time I was traveling on smooth Interstate with no crosswind. The message cleared after shutting down and restarting.
Interesting that there is no solution yet. On the iRV Ford Chassis forum:
https://www.irv2.com/forums/f23/new-...ge-532864.html, there was a report that a cable melted underneath near the muffler and that caused it. I am going to check my Axis out for this next week.
So the problem apparently affects E350, E450 and F53 chassis.
David