Blizzard has released a Hotfix addressing the Blackwing Lair gate not opening and closing properly after a boss encounter.
HotfixesFEBRUARY 11, 2022Season of MasteryBlackwing Lair Fixed an issue that prevented the portcullis at the entrance of Blackwing Lair from closing and opening properly when bosses enter and leave combat.Developers’ note: It’s possible that players may still experience this, and if the gate is currently stuck closed for you, it should clear up if all members of your raid group leave the instance for at least 30 minutes. WoW Classic Era and Season of MasteryWarlock Fixed an issue with the “What Is Love?” questline. Read more on wowhead.com