WowAce

Whenever I enter an instance and start combat, I get a lua error.  I assume it has to do with Blizz now making chat addons not work during combat in instances.

Message: Interface/AddOns/Alts/Alts.lua:2393: bad argument #1 to 'UnitExists' (Usage: local result = UnitExists([unit]). Secret values are only allowed during untainted execution for this argument.)
Time: Sun Mar 15 04:05:16 2026
Count: 12
Stack:
[Interface/AddOns/Alts/Alts.lua]:2393: in function 'OnTooltipSetUnit'
[Interface/AddOns/Alts/Alts.lua]:2210: in function <Interface/AddOns/Alts/Alts.lua:2209>
[tail call]: ?
[C]: in function 'securecallfunction'
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:67: in function <...lizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua:62>
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:87: in function <...lizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua:83>
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:123: in function <...lizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua:113>
[C]: in function 'SetAttribute'
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:148: in function <...lizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua:141>
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:298: in function <...lizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua:245>
[C]: in function 'securecallfunction'
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:242: in function 'ProcessInfo'
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:997: in function <...AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua:964>
[C]: in function 'SetWorldCursor'
[Interface/AddOns/Blizzard_UIParent/Mainline/UIParent.lua]:1271: in function <...rface/AddOns/Blizzard_UIParent/Mainline/UIParent.lua:1191>

Locals:
self = <table> {
 logonTime = "2026/03/15 04:05"
 modules = <table> {
 }
 defaultModuleState = true
 optionsCategoryId = 7
 db = <table> {
 }
 optionsFrame = <table> {
 }
 baseName = "Alts"
 enabledState = true
 defaultModuleLibraries = <table> {
 }
 name = "Alts"
 orderedModules = <table> {
 }
 matchFuncs = <table> {
 }
 hooks = <table> {
 }
}
tooltip = GameTooltip {
 processingInfo = <table> {
 }
 infoList = <table> {
 }
 shoppingTooltips = <table> {
 }
 updateTooltipTimer = 0.200000
 ItemTooltip = Frame {
 }
 StatusBar = GameTooltipStatusBar {
 }
 TextRight1 = GameTooltipTextRight1 {
 }
 supportsItemComparison = true
 supportsDataRefresh = true
 textLeft2Font = "GameTooltipText"
 BottomOverlay = Texture {
 }
 NineSlice = Frame {
 }
 textLeft1Font = "GameTooltipHeaderText"
 textRight2Font = "GameTooltipText"
 TopOverlay = Texture {
 }
 layoutType = "TooltipDefaultLayout"
 TextLeft1 = GameTooltipTextLeft1 {
 }
 textRight1Font = "GameTooltipHeaderText"
 TextRight2 = GameTooltipTextRight2 {
 }
 TextLeft2 = GameTooltipTextLeft2 {
 }
}
name = <no value>
unitid = <no value>

I believe this should be fixed in the new release today.  If you still get errors or see any others, please let me know.

I'm getting a similar one, but different line

Message: Interface/AddOns/Alts/Alts.lua:2406: bad argument #1 to 'UnitExists' (Usage: local result = UnitExists([unit]). Secret values are only allowed during untainted execution for this argument.)
Time: Tue Mar 17 06:35:09 2026
Count: 165
Stack:
[C]: in function 'UnitExists'
[Interface/AddOns/Alts/Alts.lua]:2406: in function 'OnTooltipSetUnit'
[Interface/AddOns/Alts/Alts.lua]:2210: in function <Interface/AddOns/Alts/Alts.lua:2209>
[tail call]: ?
[C]: in function 'securecallfunction'
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:67: in function <...lizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua:62>
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:87: in function <...lizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua:83>
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:123: in function <...lizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua:113>
[C]: in function 'SetAttribute'
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:148: in function <...lizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua:141>
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:298: in function <...lizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua:245>
[C]: in function 'securecallfunction'
[Interface/AddOns/Blizzard_SharedXMLGame/Tooltip/TooltipDataHandler.lua]:242: in function 'ProcessInfo'
[Interface/AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua]:997: in function <...AddOns/Blizzard_GameTooltip/Mainline/GameTooltip.lua:964>
[C]: in function 'SetWorldCursor'
[Interface/AddOns/Blizzard_UIParent/Mainline/UIParent.lua]:1271: in function <...rface/AddOns/Blizzard_UIParent/Mainline/UIParent.lua:1191>

Locals:
(*temporary) = <no value>

To add on, this happens whenever I mouse over enemies specifically

Thanks for letting me know.  I added another check that hopefully fixes that error in 12.0.5.

Please let me know if it fixes it.  I'm traveling and cannot test it properly at the moment.

After using it for a day it seems to be working wonderfully! Thank you!