Nidhogg's Rage and Thordan's Reign quests are not available.

[Xangods]

Time: November 25, 2016 around 06:30PM (-3 GMT)
Frequency: Always, since November 21 (when I first tried)
World name: Shiva
Character name: Keerye Alaison
Retainer name: N/A
NPCs name: Alys and Wandering Minstrel
Monster name: N/A
Class/Level: Any/60
Party or solo: N/A
In-game time: N/A
Area and coordinates: Mor Dhona
Housing: N/A
Steps:

1. I have already completed "The Final Steps of Faith" and "The Singularity Reactor" duties.
2. I have already completed all of Heavensward main story quests.
3. I went to Mor Dhona to talk to Alys and the Wandering Minstrel to unlock "The Minstrel's Ballad: Nidhogg's Rage" and "The Minstrel's Ballad: Thordan's Reign".
4. None of them have a quest icon on their heads.
5. I talked to both NPCs anyway; They do not have any quests available.
6. I checked my Duty Finder lists in all tabs to see if I had already unlocked these duties.
7. Both duties are not in my Duty Finder.
8. I checked my Journal in case I had already accepted both quests; They are not there either.
9. I tried again in the next days and they still have no quests for me.

Model Number of the PlayStation®4 I Am Using
- Model Number: CUH-1215A