Since I got my new 2019 Ford Edge ST a week ago, there has been two times where the sync system has totally locked up as I started to drive. When this happens, the screen will randomly flash blue, reverse camera (while driving forward), map, sync screen setup, etc. once it stops randomly fluctuating between screens, the sync panel goes non responsive. You can turn off the car and exit the Vehicle and the locked up sync screen remains on.
The only way way I have fixed it is to leav the car off for 30 minutes or so. Then the sync resets itself and works fine again until the next time.
I am using apple CarPlay with it.
Anyone having this happen with the the new ST or another year/model using Sync 3