after connecting the drone and wait for all sensors to work fine, then connecting through NTRIP reaching RTK fix after 3D fix and float, then upload the survey mission to Pixhack Cube, I armed in loiter, then auto to start the mission. Some seconds after the first waypoint if I remember well, begun the problems as you can see in the log I attached in the link below which are Bad GPS health, bad compass health, GPS glitch etc…
Actually was the day before when all the problems begun. I was flying in loiter testing my leddar one range finder and then lost GPS signal after some minutes of flying good, then I landed in stabilize and realized the RTK Here+ had no lights on!!! lights had gone off!! Then, I disconnected the battery, back on, and worked again. Flew again and and few time later the same problem. this problem has begun after 5 or 6 good flights with this Here+ RTK GPS with good results.
I have to mention that I have already changed the Here+ RTK for my old and good M8N and works as usual, very good, so it means has nothing to do with the flight controller or whatever.
Before I contact the reseller I would like to ask the experts about this serious problem, specially @proficnc to proceed the right way.
the BIN log is here https://drive.google.com/open?id=1OQ-79MCKOJfPljxG-lwcNY1zxtqky6zL and I attached a picture of my drone so you can see the position of the GPS which is 21 cm away from the nearest motor.
thanks in advance.