[Hunter] Legacy of the Windrunners Quest Bug

After the recent hotfix I can actually get through the portal without the game crashing, but the terrain has huge holes in it, half the world is not spawned in, and the artifact bow does not spawn in either, leaving my toon stuck at the end every time.

The quest cannot be abandoned to be restarted, logging in and out does nothing, exiting and entering the portal does nothing.

Hoping this can be fixed promptly, the entire legion content is locked out because this is my first artifact quest, and I cannot progress in the story without a class hall unlocked.