Last blight mobs not dying

Bug Report ID: #4.267.160.976

I was running a T16 dunes and started a blight encounter.
On the last mobs, several got killed quite quickly and are now untargetable but aren't moving either. They are stuck on the portal and don't do anything. AOE cant hit them either.

This is locking up my blight rewards, which is quite annoying on a juiced map.