Heroic Plumbers Boss did not Spawn

[Orin1234]

Area name:
Issue Location:
Quest Name:Heroic Plumbers
Store Name:
NPC Name:
NPC Location:
Server Version:200528 Puffy 6865
Screen Shot:
Time: https://www.timeanddate.com/. ten minutes before this post.

Issue Description:Heroic Plumbers Boss did not Spawn. killed all foes, went into every room, rewalked a lot of the entrance to final room. No boss. Shortcut back did not work.

Thanks!

[Puffy]

Boss trigger redrawn as of 6867