Defense mission won't end after all players chose to end mission

[(XBOX)Kuhl MC]

Instead, the mission will continue with enemies not taking/players not inflicting damage. Happened three times on Hydron so far. Chat is enabled, but you cannot leave the group, because it says: Mission cannot be left, because it has already been finished (logic bomb detected). Restart of the game is necessary in order to get out of there...

[(PSN)Mordecai_Vrykul]

happened to me last night on PS4