It's such a wonderfull game, can lost hours into it, it's really a shame that such significant, gamebreaking error is happening.
I got it too, after some hours of playing i get into Raederic Hold and after some sneaking i can't leave thorugh any exit [roof, dungeon, main exit].
Please fix it as a game itself , despite all errors is one of the best crpg's ive played from early 90's.
Things like that makes me more tolerable to all that AAA crpg games, when at least i can finish main story and quests.
Besides look at Divinity: Original Sin or Underrail, Lords of Xulima they are all indie/kickstarter projects and they are polished to the bone.
When i first played D:OS, just after realease it has some bugs but no such gamebreaking like PoE. Common Obsidian be more pro! Stories are not eveything.