For the last part of the Eco-Warriors mission, you are tasked to destroy 20 containers. After destroying the containers, the mission objective turns green indicating the objective is complete, but the mission won't end and if you walk far enough away and come back the objective starts again and the containers respawn with all the enemies. I have tried restarting the game and the problem persists. Is there any way to force the completion so that I can unlock Tulip?