World Boss bug?

[Itsuki-drenden (Itsuki)]

Just tested myself and no dice here myself.
Will be good to poke them in Bug Reports about it.

Dragonflight World Boss Kill Credit

Killed it three times decided to log and come back stayed on my server (didn’t join a raid) kill counted, rep received, quest updated and loot received. I know it’s not ideal but it’s there if it helps anyone.