ATTENTION:
The devs released several updates since I uploaded this video.
At 7:32 you'll see a different courtyard in your game. When there, just go straight ahead and take the stairs to enter the dining hall. Nothing changes for the overall route.
Later in the Starlight Cove some of the doors are locked, to open them just blow the candles next to them out.
0:00 Flight to the Stranger
1:16 Moving to Starlit Cove
3:03 Setting up the Raft
3:45 Moving to Hidden Gorge
5:45 Snooze to waste Time
6:38 Reaching the Raft
9:07 From Hidden Gorge to Starlight Cove
10:34 Who turned of the Lights?
12:36 Waiting for them to "Go Away"
14:14 Dashing to the Archive
15:36 The Error Reel
16:29 It's Rewind Time!
SPOILER - Explanation:
The dam breaks, its water floods the graves in the first section immediately, deleting the guardians there in their corresponding dream world section, and the tower (the real one) in the second section falls into the water shortly before the loop ends, deleting the guardians there. You would be kicked out of the simulation too, if you dont enter in the third section, Hidden Gorge. After the guardians are gone, you get enough time to watch the error reel, giving you further information you need.