"In a Titan Spot" quest unavailable, causes Main Story Quest wall

I am unable to start the Main Story Quest "Good Intentions" at Minifilia because I must complete the dungeon "The Navel (Hard)" first. But...

I am unable to get attuned for The Navel (Hard) because I never started the quest "In a Titan Spot" back when the Scions were located in the Waking Sands. I completed the pre-requisite quest "In for Garuda Awakening" with Papalymo back then but I failed to notice the new quest "In a Titan Spot" from Yshtola.

Yshtola is now sitting in the Scions headquarters in Mor Dhana, and she is not giving out the quest "In a Titan Spot".