Hey there.
I was playing on a save that was from the stable build, then i downloaded the experimental and kept playing that same save. I was in foundry, and as always i went to do "Kill the Beast" Quest.
I talked with the guy on the machine, i went to the caves and took all the impure blades, and also fed them to the machine.
However, nothing happens. The quest didn't even started or anything on my questlog, even though i talked basically with everyone in the place. I exhausted all their dialogs to the point the only thing i can say is "Goodbye". Am i missing any trigger or is the quest actually bugged?