same thing for me, of course now that the sky pirates are active I’m not too sure if the storyline is supposed to still be doable, but I’m pretty sure it’ is. I destroyed the investigation box because every time I tried using it on the dead ogre nothing happened, and when I tried talking to the other suspects nothing happened. So I tried to go back to the instance to grab another one, but I whenever I talk to the investigator she just tells me where to look for the suspects.