Zero loot drop when Lilith is defeated while disengaged

Platform: PC
ISP: Comcast
Type of Internet Connection: Coaxial (Cable)
Internet Connection Speed: 180 Mbps
Date & Time: 4/10/22 ~ 1:30 AM
Frequency: Always (4 repetitions so far with same result: no loot)
Character Name: Arminhammer
Race: Elvaan
World: Asura
Main Job: SCH
Support Job: WHM
Area and Coordinates: Maiden of the Dusk
Party or Solo: Party
NPC Name: Lady Lilith - Easy
Monster Name: Lady Lilith
Steps:
1. Engage lady lilith
2. Apply helix damage - best to magic burst or hit 10k helix damage to accelerate process.
3. All players disengage lilith and wait for her to be defeated by helix damage only.
4. No loot drops. Only personal Rem's tale chapters drop on all characters.

That's not a bug.

Why do you think so? Lilith is claimed. Why zero loot?

It's always been that way. Don't know if it's actually intended or indeed a bug but they've not fixed it and it's been a thing since the beginning.