Game seems to think my drood ground after picking him up from sea rescue mission. It also thinks he or the craft is still in the water and i have gotten all the challenges for highest peak climbs simultanous with fastest water speeds achievements. I've also gotten challenge for drood traveling the furthest on foot. I landed aircraft in water and swam the drood over and had him enter the seat then took off again. I noticed my speed was very low almost as if i was still expeirencing water physics before being "let go" i sped up very suddenly and resumed normal flight. Thats when the challenges started coming in.