The mobs ignoring Taunt/Agro and beelining to a barrel that has 5hp. This is hit or miss if it happens each run, sometimes you can taunt them and fight as normal and sometimes they DO NOT CARE what you do, they will fixate on the barrel. Dynasty mutations are un-runnable like this. This is not a new issue. This has been brought to AGS’s attention before. Please rectify it.
Thanks @Kommon for reporting this! I have raised this with the development team.