Hi all!
Bit of a random bug here! Spoilers yadda yadda.
After speaking with Rugan, I convinced him to let me take the chest. I took it, and after leaving the area opened it. I then went to the hideout, and was greeted and allowed inside. There, I could see Rugan being beaten by another NPC, and just as I reached about halfway inside the NPC's approached me as if I had stolen something and the entire group became hostile - bar Rugan and Oskar. After killing the entire group, Rugan was still tied to the chair, and Oskar was static by the paintings. I had not spoken to him prior to combat, and I'm now unable to interact with him.
I spoke with Rugan and untied him, but he's now just... sat in the chair grunting. I guess he likes it there.
I can only assume that the NPCs reacted negatively to me opening the crate, but to me as a player I don't know how they know. I'm also confused as to why Rugan is tied up, as no-one explained it - the torturer just stated that Olly had to be dealt with. Poor Olly.
Not game breaking, just odd! Good luck fixing it.