Unkillable Blight boss

Hello,

bug report reference: 955,606,716 has me stuck on what I think is the last boss of Blight. my first successful juiced blight and the last monster is stuck for some reason. all the other bosses that came out of there were fine. I know you guys don't usually do things to help recoup, but wondered if this has happened and what we can do to avoid losses.

Thank you,