Halatali HM final boss bug

Time: 19:20 BST
Frequency: Repeatable.
World name: Gilgamesh
Character name: Kiel Sakion

Monster name: Mumepo the Beholden
Class/Level: Dragon 50
Party or solo: Duty Finder Party
In-game time: 14:20
Area and coordinates: Halatali Hard Mode - Final Boss Hall of Secutores
Steps:
1. Kill Mumepo during the moment he finishes casting standstill. Characters will become binded, but the animation for the skill will not go off and Thal's Scepter will not spawn. The characters cannot be unbinded through leeches/esuna, cannot move or use attacks. Only way to clear the bind is to die. If dungeon is completed before the player dies then the character will be locked into the loading screen and the game must be force exited.