I was out today flying in Manual, Stabilize, RTL and Auto mode today and evertything started out OK. The Auto mission had 7 way points and a home location. The altitude of each way point is 100 meters. I started out in manual and when I reached about 40 meters in height, I switched from manual to auto mode. The mission was proceeding according to planning until arriving at way point 6, then the plane throttled down and was headed for a crash. I flipped to manual and between that and RTL mode I was able to recover without a crash. My command setting for Way Point 7 is RTL instead of just "WAY POINT". Although I may be mistaken, I thought that would return the plane in auto mode and that it would loiter or circle forever around the home location on that setting. Any help that anyone could provide would be greatly appreciated. I am including the tlog from the flight.
I have not updated the firmware on APM in a few months. Not sure the specific version number for my Arduplane software
Flying: Sky Surfer
Param File: Bixler
3DR Radio 915Mhz
APM: 2.5 with external uBlox GPS, but internal compass.