Game Mechanics: PoSky Key Issue

[Videri]

Sounds like this may be a key issue, not a quest issue.

OP, Plane of Sky keys are notoriously finicky. The player in question may need to change their camera angle, stand inside or outside of the dish, or click on different parts of the dish.

I also recommend checking the map on the wiki so you can know for sure which pad is the correct pad.