Cecco: I can't remember anymore what I had done before this happened.
Steve was definitely not with you at that point? Just to make sure, because the script code may also spawn Steve when entering the room from the south. It's really weird, I tried all sorts of things, but I can't reproduce it yet. Still at least 3 players have encountered this issue by now, so it's surely not because of some special user actions.
That video is also from 2010, I asked the channel owner, if he ran the game using ScummVM or Dos-Box. Back then we had support for SCI, but the support was very new. At least that could make sure that it's definitely some sort of game bug.
Thank you for looking into it.
You're welcome.
You ScummVM guys should be more acknowledged here on GOG.
Thanks.