Got this error when buying the special beta testing stuff. IDK if the error is just cause the items are "fake", but I figured you'd still want to see it.

5x Interface/AddOns/idTip/idTip.lua:330: attempt to call method 'GetItem' (a nil value)
[string "@Interface/AddOns/idTip/idTip.lua"]:330: in function func' [string "@Interface/SharedXML/Tooltip/TooltipDataHandler.lua"]:27: in function <Interface/SharedXML/Tooltip/TooltipDataHandler.lua:22> [string "@Interface/SharedXML/Tooltip/TooltipDataHandler.lua"]:37: in function <Interface/SharedXML/Tooltip/TooltipDataHandler.lua:33> [string "=(tail call)"]: ? [string "@Interface/SharedXML/Tooltip/TooltipDataHandler.lua"]:145: in function ProcessInfo'
[string "@Interface/SharedXML/Tooltip/TooltipComparisonManager.lua"]:246: in function SetItemTooltip' [string "@Interface/SharedXML/Tooltip/TooltipComparisonManager.lua"]:166: in function RefreshItems'
[string "@Interface/SharedXML/Tooltip/TooltipComparisonManager.lua"]:157: in function CompareItem' [string "@Interface/FrameXML/GameTooltip.lua"]:516: in function GameTooltip_ShowCompareItem'
[string "@Interface/FrameXML/MerchantFrame.lua"]:637: in function `UpdateTooltip'
[string "@Interface/FrameXML/GameTooltip.lua"]:487: in function <Interface/FrameXML/GameTooltip.lua:480>

Locals:
self = ShoppingTooltip1 {
0 =
SetQuestLogRewardSpell = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetQuestPartyProgress = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
ProcessLineData = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:166
SetPvpTalent = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetExistingSocketGem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetHyperlink = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetUnit = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetAzeriteEssence = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetVoidDepositItem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetVoidWithdrawalItem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetInfoBackdropStyle = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:200
SetSocketGem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetLootCurrency = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetSlottedKeystone = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetItemInteractionItem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetLootItem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetOwnedItemByID = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetQuestLogSpecialItem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetRecipeReagentItem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetBuybackItem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetWeeklyReward = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetMerchantItem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
SetPvpBrawl = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
BottomOverlay = Texture {
}
SetSpellByID = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
hasMoney = 1
SetSocketedRelic = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
ProcessInfo = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:107
ProcessLines = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:156
NineSlice = Frame {
}
SetInventoryItem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
shownMoneyFrames = 1
numMoneyFrames = 1
SetLootRollItem = defined @Interface/SharedXML/Tooltip/TooltipDataHandler.lua:306
info =

Should be resolved in ae20b2f