Is there a bug allowing Duos into Solo Lethal Mists?

​Hey guys,

​Yesterday I died twice to Duo players in Solo Lethal Mists while running high gear. On top of that, I’ve spotted multiple Duo players within just a few hours today. They are clearly aware of each other’s positions on the map, and the moment you get into a fight, the second guy comes out of nowhere from across the map.

​This didn’t use to happen this frequently before. Also, one of the guys who killed me actually claimed there’s a bug that allows you to queue/play with a friend in Solo Mists.

​Does anyone know anything about this bug or experiencing the same issue?