missing trophies

after completing a mission to kill the hunter in leviathan i had 15 trophies onboard my destroyer from killing to groups of hunter predators and a proceeded to dock at the station. the flight banner didnt show up so i continued to tend to my ships in my available slots ,while doing so im interupted by the flight banner telling my my ship has been destroyed and i lost all my trophies! also had to manually repair the ship afterwards. this is not right the game is hard enough as it is without being cheated