I am now genuinely convinced that this is bugged.
I literally started a new game, spoke with nobody, did only the minimal quests, and its still 100% the same.
I'm a Halfling Bard(1)/Hexblade Warlock(2), if that matters. In the other games I was Bard(2)/Hexblade Warlock(2), once as Halfling, once as Wild Half-Elf.
Always Dark Urge, of course. Would be funny if I tried on a regular custom and it worked. When it wouldnt even given me an inspiration.
And this is the most recent patch, the GoG version.
P.s.: Oh and yes I tried changing my class. I tried getting branded. I tried entering to the regular entrance and to the sideway. Nothing changes.
The videos on the internet show no special precondition either.
