Bug Report - Arbiter of Divinity Kill Not Registered (Orb Kept, No Reward, No Replay)

I am writing to report a critical bug with the Arbiter of Divinity (神圣仲裁者) encounter in Path of Exile 2 (International Server).
Bug Details:
My friend and I killed the Arbiter of Divinity together (I helped them defeat the boss).
After the kill, both "Primordial Cradle (原初摇篮)" and "Primordial Radiance (原初光辉)" remained in my inventory-they were not consumed as intended.
I did NOT receive any quest rewards (e.g., atlas points, talent points, or completion credit) for defeating the boss.
The encounter is locked and cannot be replayed; I cannot re-enter the arena or attempt the boss again.