Devouring Diadem "Feast of Flesh" consuming Aukuna (Maraketh General) between phases.

I don't have an image or a bug report number for this one, but I just watched it happen a few minutes ago. As Aukuna transitioned between her mounted phase and her on-foot phase, Feast of Flesh activated and consumed Aukuna in the process, completely despawning her (and removing any chance for me to collect her splinters).

I've also seen the skill consume various unique monster corpses, and even Delve walls; unsure if those are intended or not.

Happened to me twice within 3 minutes. My diadem apparently destroyed the dinosaur corpse and i also got no drops. Made me lose like 20 splinters which is quite sad.