That's different from the user-configurable limits that you can set.This was in the top left were (good to fly) usually is .Height Limited Zone ( GPS ) & Altitude Limit 492ft. ????
...yeh the phantom will make you acept flight over 120 mtrs or 400ft.I’ve seen that warning on my Mavic Air 2, but I’m not sure if it would be the same on the Phantom. My limit was set at 200 feet.
Setting the upper limit to 492ft is nonsense as it is generally allowed to 400ft.
I often fly from the base of hills that may be 1000+ feet high. 400 feet doesn't allow me to fly up ravines to scout hiking trails. I never see anything like this. Only the vocal message saying "Altitude limit reached. "When flying in mountainous areas, having this set at a higher value is a must.