LUA Error mousing over WQs

[JPEscher]

two lua errors. please let me know if other data will help. latest retail versions for both game and mapster.
one:

Message: ...AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua:754: attempt to perform arithmetic on a secret number value (tainted by 'Mapster')
Time: Thu Feb 12 06:34:06 2026
Count: 1
Stack:
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:754: in function 'EmbeddedItemTooltip_UpdateSize'
[*GameTooltip.xml:96_OnSizeChanged]:1: in function <[string "*GameTooltip.xml:96_OnSizeChanged"]:1>
[C]: in function 'GetWidth'
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:754: in function 'EmbeddedItemTooltip_UpdateSize'
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:837: in function <...AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua:810>
[C]: in function 'EmbeddedItemTooltip_SetItemByQuestReward'
[Interface/AddOns/Blizzard_FrameXMLUtil/Mainline/QuestUtils.lua]:823: in function 'QuestUtils_AddQuestRewardsToTooltip'
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:209: in function 'GameTooltip_AddQuestRewardsToTooltip'
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:727: in function 'GameTooltip_AddQuest'
[Interface/AddOns/Blizzard_UIPanels_Game/Mainline/WorldMapFrame.lua]:176: in function 'TaskPOI_OnEnter'
[Interface/AddOns/Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua]:421: in function <...rd_SharedMapDataProviders/WorldQuestDataProvider.lua:420>

Locals:
self = Frame {
 itemTextureSet = true
 IconOverlay2 = Texture {
 }
 count = 15
 isCraftedItem = false
 Text = FontString {
 }
 FollowerTooltip = GameTooltipGarrisonFollowerTooltip {
 }
 isProfessionItem = false
 yspacing = 13
 IconOverlay = Texture {
 }
 Count = FontString {
 }
 IconBorder = Texture {
 }
 itemID = 163036
 Tooltip = GameTooltipTooltip {
 }
 Icon = Texture {
 }
}
itemTooltipExtraBorderHeight = 22
(*temporary) = <no value>
(*temporary) = <no value>
(*temporary) = Texture {
}
(*temporary) = <no value>
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to perform arithmetic on a secret number value (tainted by 'Mapster')"

two:

Message: ...AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua:754: attempt to perform arithmetic on a secret number value (tainted by 'Mapster')
Time: Thu Feb 12 06:34:06 2026
Count: 1
Stack:
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:754: in function 'EmbeddedItemTooltip_UpdateSize'
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:837: in function <...AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua:810>
[C]: in function 'EmbeddedItemTooltip_SetItemByQuestReward'
[Interface/AddOns/Blizzard_FrameXMLUtil/Mainline/QuestUtils.lua]:823: in function 'QuestUtils_AddQuestRewardsToTooltip'
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:209: in function 'GameTooltip_AddQuestRewardsToTooltip'
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:727: in function 'GameTooltip_AddQuest'
[Interface/AddOns/Blizzard_UIPanels_Game/Mainline/WorldMapFrame.lua]:176: in function 'TaskPOI_OnEnter'
[Interface/AddOns/Blizzard_SharedMapDataProviders/WorldQuestDataProvider.lua]:421: in function <...rd_SharedMapDataProviders/WorldQuestDataProvider.lua:420>

Locals:
self = Frame {
 itemTextureSet = true
 IconOverlay2 = Texture {
 }
 count = 15
 isCraftedItem = false
 Text = FontString {
 }
 FollowerTooltip = GameTooltipGarrisonFollowerTooltip {
 }
 isProfessionItem = false
 yspacing = 13
 IconOverlay = Texture {
 }
 Count = FontString {
 }
 IconBorder = Texture {
 }
 itemID = 163036
 Tooltip = GameTooltipTooltip {
 }
 Icon = Texture {
 }
}
itemTooltipExtraBorderHeight = 22
(*temporary) = <no value>
(*temporary) = <no value>
(*temporary) = Texture {
}
(*temporary) = <no value>
(*temporary) = nil
(*temporary) = "attempt to perform arithmetic on a secret number value (tainted by 'Mapster')"

[JPEscher]

this is now actually spilling over. it now causes everything else to taint after trigger, including blizzard built ins.

[JPEscher]

i think this is now causing issues in other mods GurliGebis/WoWAddon-PokemonTrainerNG#26

[JPEscher]

might be useful Stanzilla/WoWUIBugs#801