Hi, I just encountered a funny bug in the nightmare map on suicidal dificulty where I destroyed the abomination boss's head armor from far away, and the moment I destroyed it, a second boss spawned, making me fight two bosses at the same time. Also I found out tath the Zed devouring ability can be used on bosses(YES, the bosses ate each other!) wich was hilaryous ;D.I hope this information can be usefull for this bug to be fixed 
(side note: I was playing as a gunslinger).
(side note: I was playing as a gunslinger).