Double bosses not giving loot

The boss with mage / mastodon is bugged and doesn't give any loot, it dies to early aswell. I also noted other bosses spawning with 2 copies, such as the miller. They also die in weird ways (before they reach 0hp) and also gives no loot.
Can we get a hotfix to this? I don't want another full season where it goes unchanged like the bird clock boss last season.

I started the fight but once finished...........
NO UPDATES TO THE QUEST either
and hence, I am stuck too!!!