It says there's conditions to access this story scene, anyone know what it is because it doesn't seem to tell me.

Can you post a screenshot? Everything should tell you what the requirements are. Normally, it involves doing the Exploration mission for the area where the quest takes place, if it isn't on the ARKs Ship..

Ult Amduskia I believe.

Ult Amduskia? Oh boy, I'll try that. (It is on the Arks ship.) Screenshot (Cropped to hide names)