WowAce

Message: ...ce/AddOns/Blizzard_ActionBar/Shared/ActionButton.lua:847: bad argument #1 to 'SetCooldown' (Usage: self:SetCooldown(start, duration [, modRate]). Secret values are only allowed during untainted execution for this argument.)
Time: Tue Mar 24 10:59:15 2026
Count: 3
Stack:
[Interface/AddOns/Blizzard_ActionBar/Shared/ActionButton.lua]:847: in function <...ce/AddOns/Blizzard_ActionBar/Shared/ActionButton.lua:845>
[Interface/AddOns/Blizzard_ActionBar/Shared/ActionButton.lua]:866: in function 'ActionButton_ApplyCooldown'
[Interface/AddOns/Bartender4/libs/LibActionButton-1.0/LibActionButton-1.0.lua]:2106: in function <...er4/libs/LibActionButton-1.0/LibActionButton-1.0.lua:2057>
[Interface/AddOns/Bartender4/libs/LibActionButton-1.0/LibActionButton-1.0.lua]:1431: in function <...er4/libs/LibActionButton-1.0/LibActionButton-1.0.lua:1357>

Locals:
cooldown = BT4Button50Cooldown {
}
start = <no value>
duration = <no value>
enable = true
modRate = <no value>

also getting this

Message: ...ce/AddOns/Blizzard_ActionBar/Shared/ActionButton.lua:847: bad argument #1 to 'SetCooldown' (Usage: self:SetCooldown(start, duration [, modRate]). Secret values are only allowed during untainted execution for this argument.)
Time: Tue Mar 24 11:10:35 2026
Count: 3
Stack:
[Interface/AddOns/Blizzard_ActionBar/Shared/ActionButton.lua]:847: in function <...ce/AddOns/Blizzard_ActionBar/Shared/ActionButton.lua:845>
[Interface/AddOns/Blizzard_ActionBar/Shared/ActionButton.lua]:866: in function 'ActionButton_ApplyCooldown'
[Interface/AddOns/Bartender4/libs/LibActionButton-1.0/LibActionButton-1.0.lua]:2106: in function <...er4/libs/LibActionButton-1.0/LibActionButton-1.0.lua:2057>
[Interface/AddOns/Bartender4/libs/LibActionButton-1.0/LibActionButton-1.0.lua]:1431: in function <...er4/libs/LibActionButton-1.0/LibActionButton-1.0.lua:1357>

Locals:
cooldown = BT4Button27Cooldown {
}
start = <no value>
duration = <no value>
enable = true
modRate = <no value>

4219x ...ceBlizzard_ActionBar/Shared/ActionButton.lua:847: bad argument #1 to 'SetCooldown' (Usage: self:SetCooldown(start, duration [, modRate]). Secret values are only allowed during untainted execution for this argument.)
[Blizzard_ActionBar/Shared/ActionButton.lua]:847: in function <...ceBlizzard_ActionBar/Shared/ActionButton.lua:845>
[Blizzard_ActionBar/Shared/ActionButton.lua]:866: in function 'ActionButton_ApplyCooldown'
[Bartender4/libs/LibActionButton-1.0/LibActionButton-1.0.lua]:2106: in function <...er4/libs/LibActionButton-1.0/LibActionButton-1.0.lua:2057>
[Bartender4/libs/LibActionButton-1.0/LibActionButton-1.0.lua]:1431: in function <...er4/libs/LibActionButton-1.0/LibActionButton-1.0.lua:1357>

Locals:
cooldown = BT4Button15Cooldown {
}
start = <no value>
duration = <no value>
enable = true
modRate = <no value>

in Raid Story Mode

Just noticed this.

https://www.wowhead.com/news/some-last-minute-changes-coming-to-addon-api-before-mythic-raids-and-mythic-380900

 New version of LibActionButton-1.0 seems to have fixed it replace the entire LibActionButton-1.0 folder in the Lib folder.

https://legacy.curseforge.com/wow/addons/libactionbutton-1-0/source