rc and gps lost

Hello P4P pilots, Yesterday I was doing documentation of a construction site with P4P+. I did use 4 batteries. Last flight was without problems but others were quite bad. Weather was windy and temperature was little bit below freezing point. P4P did lost GPS several times during each 3 flights...

When i was flying over the city yesterday i lost gps and rc I could not do anything and do not know what happened. i lost the drone. Does anyone know what happened with the drone when i lose the gps and rc ? He hovered and landed after that she lost RC to ? I have the flyght record and the last...