Playing Brawl, Orah Skyclave Hierophant is the commander for my deck.
Orah is on the battlefield under my control alongside with Lunarch Veteran and Inspiring Overseer.
Meathook Massacre II is on the battlefield for the enemy player
After I play Meathook Massacre and kill off Lunarch Veteran and Inspiring Overseer that were on the battlefield under my control
The Meathook Massacre II's ability triggers, which I pay 6 life to not give those two away.
BUT Orah's ability never trigger to get Lunarch Veteran back since Orah is on the battlefied
Meathook Massacre's Ability trigger for both of them and I gain 2 life.

I'm playing on PC

Everything happens as if Orah was never there.

Orah's ability should resolve either before or after Meathook Massacre II's abilities

Included the Log