So at the beginning of the game, after talking to the prospectors to get the gas, I decided to go back to the house to get some more money since I had bought a few things from the seller. But when I left the house again the prospectors and their stuff was gone (including the fence they're in front of). Like they didn't load. I restarted the game a few times, uninstalled and reinstalled it but it kept happening. It doesn't happen everytime I re-enter and leave the house though. If I re-enter and leave the house before talking to them, they stay where they are. It only happens if I go back to the house after having talked to them. Honestly I'd be fine just moving forward with the story but I don't know if I'm gonna need to talk to them again later on to solve a quest and don't wanna risk getting stuck further into the game.

I'm only at the beginning but I really like the premise so I hope I'll be able to keep playing.

I wanted to add that I had this same issue! I don't mind re-starting the whole game at this point, since it's only at the start and I've been loving what I've seen so far. But I wanted to mention I also experienced the same bug.

Should anyone run into this before they get the gas or  pass on Lienna's decision, for me the prospectors reappeared after I closed the game and reopened it. I hope this saves people having to restart.