Unable to complete quest 'In for Garuda Awakening' (for 'Garuda hard' fight)

[Aikasa]

Time:n/a
Frequency: Always
World name: Ragnarok
Character name: Aikasa Sweet
NPC name: Natalan Aetheryte
Monster name: n/a
Class/Level: Every job 50 (and after I defeated Ifrit)
Party or solo: solo
In-game time: n/a
Area and coordinates: Coerthas Central Highlands - X:34, Y:25

Steps:
1. I started and 'completed' the quest 'In for Garuda Awakening', touching the Natalan Aetheryte
2. Game message: 'Quest Completed'
3. Game message: 'The Howling Eye (HARD) added in duty finder list'
4. Quest 'In for Garuda Awakening' remains active (after messages!)
5. I cannot see/start 'The Howling Eye (HARD) in duty finder list
6. I tried more times switching all my lvl 50 jobs ang after many log in / log out
7. I started the quest after I killed Ifrit HARD
8. First time, I started the quest with duty finder search active (generic really BAD game bug?)

Please, I need to fight agaist Garuda hard!!!!!!!!!!!!!!!

Connection Specs
- Type of internet connection/provider: adsl - telecom