Stuck in "Of Wolves and Warriors" Quest

Hi. I boosted this character with my level 100 boost from legion months ago (after BFA came out). Once I finished all actual questlines, I decided to go back to Draenor and get Pathfinder and the Loremaster achievements.

My problem is, during the quest Of Wolves and Warriors, where you go with Durotan so you can establish your Garrison, the garrison phases out to an almost-done version of it, including quest NPCs, and making the quest impossible to turn-on, and by it, leaving me with no way to finish the questline.

I don’t know if this is a bug where I should be phased to the non-garrison version, or If I have to abandone the quest. I didn’t find any help neither.

This is bugged for me as well. Exact same problem. Is there any solution?