Offline custom terrain aware profile

I think I have discovered what I was doing wrong and how I can use the custom terrain feature offline.

When making a mission while the Ipad is online it is important to calculate the terrain adjusted waypoints using the custom terrain profile BEFORE saving the mission for later use offline. I had the custom terrain profile correctly selected under the terrain aware tab but I did not run the mission through the custom terrain profile prior to saving the mission. Instead I was attempting to get MPP to calculate the custom terrain profile at the time of uploading the mission to the drone just prior to the flight.

Yes, this is correct. When you save a mission it will back up the basemap information that is used for that map. No all users have access to the Terrain Awareness feature so it only saves the information that was used in the creation of the layout. 

Once this data is saved on the device it can be used to create other Mission Plans while in the field without needing an internet connection.