You should explain what you are trying to achieve here FIRST and then post some code etc.
From your dev name and the abbreviation GQSB I know it's about Gremyind Quickslot bar and it seems to be something about dragging items from the bar, and you expect (it worked on live server I assume) either the event EVENT_ACTION_SLOT_UPDATED to fire then, or the
callback manager to fire
ACTION_BAR_ASSIGNMENT_MANAGER:FireCallbacks("SlotUpdated", self.hotbarCategory, actionSlotIndex, IS_CHANGED_BY_PLAYER)
When exactly do you think this should fire? What are you doing?
It's easier for Dan to understand and maybe find a bug then.
Thank you.
btw: The quickslots changed and there are new files that might fire a quickslot only related callback meanwhile, so check the new files, if it's about quickslots:
https://github.com/esoui/esoui/blob/...board.lua#L202
https://github.com/esoui/esoui/blob/...l_keyboard.lua
ZO_UtilityWheelValidateOrClearSlot