Yes, I can confirm the bug and also describe other problems with this walkthrough: You can run into the rock in front of the cave entrance and when you enter the cave through the back-way entrance and trigger the trap, you are knocked down lying on the ground, but the animation shows only half your body and the other half is covered by the ground. Furthermore, the graphics show angular hexfield-like floor contours with fluids. The remains (plank) of the destroyed ladder lie horizontally on the rock stairs and should actually tip down with the longer end (gravity).
![[Linked Image from i.imgur.com]](https://i.imgur.com/134gPMF.jpg)
![[Linked Image from i.imgur.com]](https://i.imgur.com/TrTVK0r.jpg)
![[Linked Image from i.imgur.com]](https://i.imgur.com/tK7oD99.jpg)
Now to the actual walkthrough bug. The cutscenes / dialogues after the main dialogue with Rugan are similarly choppily short as with Benryn, whom you can save from the fire in Waukeens Rest. Not even switching to TB in advance helps, because the Gnolls are not covered by it and join shortly after, as in stealth, but this abruptly interrupts the dialogue and initiates the fight.
The AI of the Gnolls is surprisingly clever despite their blind rage, which bothers me a bit because it feels contradictory when they're in a blood frenzy, but act tactically rational. The Gnoll archers shoot their AoE arrows at the alchemist fires lying on the ground and explode them, which can do quite a bit of damage to Olly and Rugan. This would be more for a higher level of difficulty.... Depending on the turn order, the Zhents die at 90% and the stupid shove mechanic makes them die even more easily. You'd think that ranged fighters wouldn't go into melee range, but Olly shooting his arrows or throwing his alchemist fire and then running into the mass of Gnolls just to shove one of them into the fire is absolutely illogical and often leads to his one hit death by the Flint.... With Rugan it would probably be the same, but since he is completely buggied incapable of action, he also does nothing...
It took me a few tries to ensure their survival and I like this route and outcame more than the other ones. There is still some room for improvement here.