I'm trying to activate the reverse camera on my 2015 Ford Focus but get the following message when engaging reverse:

I did the following to activate it:
1. Physically Installed the wiring loom
2. Physically Installed the camera and connected it
3. I have set "Rear Camera" to "FNA RVC Present" set in "Direct Config"

4. I set AsBuild line 99 to "With Park Assist Camera, Accessory Only" and clicked "Write AsBuild to BCMi" and "Write AsBuild backup to IPC"

5. Did a Sync2 reset by pressing the right arrow and power button together for 10 seconds.
I took the car to my local dealer and replaced the wiring loom and camera and still get the same error. The guys at Ford said that it's likely a software error.
Can anyone help?