Wish for Titans bosses missing

Wish for Titans should've added map bosses to the mirage. The mirage's mod list says "Area contains 1 additional pack of four Map Bosses". My character is not the kind to roll over several bosses without noticing. The corner says 0 monsters remaining. I walked around and scanned for unusual corpses just in case. The bosses are nowhere to be found.
Report number 1 896 107 232.