Auto mission stopped

Hi,

I tested my boat today running a mission. At some point the boat stopped the mission, after approx 25min. Is there anything visible in the log what caused the stop?
logfile: https://we.tl/t-ZmGuYsIc5Z
Thanks!
Denis

I checked the MAG values. MAG1 and MAG2 are consistent but MAG3 is way off. How can that happen? Controller is Pixhawk Black Cube with Here2 and an additional RTK.