I got quest number 5 or so in the search for a relic main quest, accepted the tribal village with the ancient terminal quest. (I had let the quest sit there for quite some ingame time before accepting, maybe a year). Then immediately formed a party to go there. Hacked the terminal, but nothing happened. Tried to leave to the edge, but was told I can leave by reforming caravan, so I did, and quest failed.
I watched a video of someone doing the quest, and there was a message right after the terminal was hacked and tribals got angry, and he escaped to the edge, so perhaps only something wrong around my save.
I tried to only go in with one person, hack with a different person, wait until after 6 in the morning, bunch of different things that had no other effect. Still nothing when terminal was hacked.
In the savefile below the caravan will enter village in about 10 seconds, and you can hack terminal there to see that nothing happens.
Link to savefile (https://drive.google.com/file/d/16XrOmWOaWl58t5Y_xg4vJJWes9fDyA1G/view?usp=sharing)
Thanks for the bug report. I was able to reproduce this on your save and will have the devs look at it. I don't think the mod you have added could be reasonably said to break this feature so I think I can sneak it in. Appreciate the save and information!