Bodach bugs

After first death at boss, when im descend again in locations from caer tarth, its a smaller area then previos.
Teleport in hideout, and open new portal for caer tarth fix it
But in anyway, when i won first time, it's impossible to enter the boss arena from the path with fireflies - you enter the darkness (a completely dark screen), listen to the sounds of the boss, and soon die from the darkness