It seems that if I go upstairs and am considered trespassing, all of the party members crouch in fear and all of the guards know what I have done, even though I was never detected. Same thing goes for if a body is found downstairs. Somehow everybody immediatly knows it was me who killed them. This completely negates the point of going up to Boyle's room and finding out what can be used against her as she's cowering in fear and all of the guards will kill me on sight. Is this a bug or just a design flaw? Anybody else get this on any system? I'm currently playing PC. Also, I'm not sure if this would be a software issue or not so sorry if I posted in the wrong section.

I got that too only they weren't cowering in fear the first time. everyone was just going about their business and i possessed a rat to turn off the wall of light. when i came out of the room with the generator every one including the party guests was getting the alerted markers above their head. I thought that it could have been the fact that I had failed at the stealth up stairs and had to fight some guards. either way i just reloaded the mission made sure not to get detected upstairs and got through it just fine. im on the PS3 by the way

I went up there multiple times and still ended the mission without spoiling the party...I even carried my unconscious target down the stairs to the kitchen, meeting a guard on his way up...he drew his sword, but still let me pass without even saying a word...you have to be doing something wrong, like not sneaking or something...