BUG in Rytual altairs

"Before doing the ritual inside the circle, there was a Monolith, and the Raven Boss—the same one from the Chaos Trials—spawned out of it. During the fight, he released that filthy thing. Then, during the ritual itself, a raven appeared on the board along with a Macabre Chick right away. During the fight, the Boss spawns another chick, so there are two of them on the map, but only one dies. After killing everything, one chick remains, and it's completely bugged/uninteractable."