Issue #25519: Farengar Odahviing scene still plays even if he had been killed during Mephala quest
Here is relative references...
FarengarSecretFire "Farengar Secret-Fire" [NPC_:00013BBB]
MQ303 "The World-Eater's Eyrie" [QUST:00046EF0]
DA08 "The Whispering Door" [QUST:0004A37B]
During MQ303 where Odahviing is captured - Farengar comes out and goes behind wing to pull out a scale from Odahviing. This scene plays out even if Farengar has been killed prior to this during the Mephala quest DA08.
I killed Farengar to get the key to the whispering door and get the Ebony Blade. Later I continued the main quest and trapped Odahviing in Dragonsreach. That scene plays without Farengar. He is not present and you only hear Odahviing's lines - Ireleth says her line too. But no Farengar.
Everything progresses just fine - it is just strange knowing he is dead and that scene still plays.