Real UI Inventory Bug

[Hakamaori]

I updated the WoW Hotfix and updated Real UI 2.2.8, after which I began receiving the following bug. First it occurred when I was opening my bags, then it occurred when I was doing the World Quest [It's Raining Sparkles]. it threw an error every time I used one of the two "Lady Moonberry" abilities. The error also occurred when interacting with items on the group during World Quests, quest objectives being awarded and going into my bags, gold being received or spent, and randomly during combat while attacking and killing mobs.

Is this due to the WoW 9.0.1 libraries that are in the Real UI update but not currently on the Live servers until 9/0/1 drops?

x28  RealUI_Inventory-2.2.8\Filters-Filters.lua:119: attempt to index field '?' (a nil value)
Stack: [string "@RealUI_Inventory-2.2.8\Filters-Filters.lua"]:119: in function 'HasPriority'
[string "@RealUI_Inventory-2.2.8\Bags.lua"]:427: in function 'AddSlotToBag'
[string "@RealUI_Inventory-2.2.8\Slots.lua"]:199: in function <RealUI_Inventory-2.2.8\Slots.lua:198>
[string "=[C]"]: in function 'xpcall'
[string "@FrameXML\ObjectAPI\AsyncCallbackSystem.lua"]:76: in function 'FireCallbacks'
[string "@FrameXML\ObjectAPI\AsyncCallbackSystem.lua"]:35: in function <FrameXML\ObjectAPI\AsyncCallbackSystem.lua:31>
[string "=[C]"]: ?
[string "=[C]"]: in function 'accessor'
[string "@FrameXML\ObjectAPI\AsyncCallbackSystem.lua"]:52: in function 'AddCallback'
[string "@FrameXML\ObjectAPI\AsyncCallbackSystem.lua"]:60: in function <FrameXML\ObjectAPI\AsyncCallbackSystem.lua:58>
[string "=(tail call)"]: ?
[string "@RealUI_Inventory-2.2.8\Slots.lua"]:198: in function 'UpdateSlots'
[string "@RealUI_Inventory-2.2.8\Bags.lua"]:232: in function 'Update'
[string "@RealUI_Inventory-2.2.8\Bags.lua"]:315: in function 'OnShow'
[string "@RealUI_Inventory-2.2.8\Bags.lua"]:354: in function <RealUI_Inventory-2.2.8\Bags.lua:353>
[string "=[C]"]: in function 'SetShown'
[string "@RealUI_Inventory-2.2.8\RealUI_Inventory-2.2.8-2.2.8.lua"]:39: in function 'Toggle'
[string "@RealUI_Inventory-2.2.8\Blizz.lua"]:21: in function 'ToggleAllBags'
[string "OPENALLBAGS"]:1: in function <[string "OPENALLBAGS"]:1>
Time: 2021/03/09 23:49:35 Index: 4/4
Locals:
None