Has anyone else experienced a notification in Healthy Drones that reports MODE CHANGED TO GPS ATTI. I thought it was either GPS or ATTI. I was in NFZ (area E) and wonder if the GO APP automatically changes to ATTI in that situation. The AC controlled as in GPS with no drift. As I went further into the zone I did get the 2nd level warning and confirmation box. I was safely able to return the AC with no issues. I was intentionally testing NFZ situation in an area where NO aircraft ever actually fly - just a remote part of the standard NFZ.