Tried this quest and the group we were with could not even reach the first group of gnolls. Nothing. Entirely blocked. Spells could not even destroy the small logs that blocked our way.
Last two times I did this quest it was winding but OPEN. No tiny hard-to-see passages through logs and mist. Seems to have gone back to the old bugged version.
Last two times I did this it was completely 100% blocked on both sides, no passages or anything. We had to use burning hands and ice storm to blow up passages even in order to complete it, destroying three clusters of impassable underbrush.
Still a problem.
Must be random, because we just did this quest a couple days ago and it was wide open.