Hey there everyone, I completely understand any disappointment caused here and I want to assure you that the development team is aware of this, and they are currently hard at work looking into it. Further updates regarding this issue with the encryption keys will be posted in our News and Announcements section.
It seems that only the session owner will receive the encryption key after completing the Manhunt in a group. Therefore as a potential temporary workaround whilst our teams continue to investigate, we would recommend that you try to reset the progress and redo the Manhunt.
If anyone has any further questions or experiences any other issues, please do not hesitate ...