Cannot continue lvl85 Main Scenario Quest

[5corpius]

Date & Time: 12/4/2021
Frequency: Persistent
World name: Sargatanas
Character name: Wach'a Veili
NPC name: Mehvan's baby
Class/Level: Dancer 86
Party or solo: Solo
In-game time: Persistent
Area and coordinates: Thavnair (x: 24.7 y: 24.1 z: -0.6)
Steps:
1. Main Scenario Quest "Warm Hearts, Rekindled Hopes" cannot be completed because I cannot select the object under the water.

The object can be highlighted if I target another player's selected target bar- but it still will not let me interact with the object. When I attempt to select the object I already have selected via another player, the selection disappears again.

I've logged out and logged back in/left the area and returned with the same problem.