I'm unable to advance the quest because the door once you enter Sylvan Cradle and needs to turn 4 red lights on the wall into blue lights.
Even though i've already activated the 4 of them the door remains closed and the pilar on the center still remain with one of the lights as RED.
Tried exiting the realm and sleeping then going back in and the missing light showed up along with the missing echo for achivment.
Yah same for me even broke a wall near the entrance.