Hello,

I've pledged with ravendreth, it looks like since then, there is this error only in vengeance, not havoc :
Message: Interface\AddOns\HeroLib\Class\Unit\Aura.lua:32: attempt to index local 'ThisSpell' (a nil value)
Time: Thu Nov 26 14:16:28 2020
Count: 9
Stack: Interface\AddOns\HeroLib\Class\Unit\Aura.lua:32: attempt to index local 'ThisSpell' (a nil value)
[string "@interface\AddOns\HeroLib\Class\Unit\Aura.lua"]:32: in function <Interface\AddOns\HeroLib\Class\Unit\Aura.lua:27>
[string "=(tail call)"]: ?
[string "@interface\AddOns\HeroLib\Class\Unit\Aura.lua"]:81: in function BuffRemains' [string "@Interface\AddOns\HeroLib\Class\Unit\Aura.lua"]:99: in function BuffUp'
[string "@interface\AddOns\HeroLib\Class\Unit\Aura.lua"]:104: in function BuffDown' [string "@Interface\AddOns\HeroRotation_DemonHunter\Vengeance.lua"]:192: in function <...erface\AddOns\HeroRotation_DemonHunter\Vengeance.lua:181> [string "@Interface\AddOns\HeroRotation_DemonHunter\Vengeance.lua"]:306: in function ?'
[string "@interface\AddOns\HeroRotation\Main.lua"]:445: in function <Interface\AddOns\HeroRotation\Main.lua:423>

Locals: self =

{
UnitCanBeAttacked = true
IsSpellInActionRange = defined @interface\AddOns\HeroLib\Events\Action.lua:426
IsItemInActionRange = defined @interface\AddOns\HeroLib\Events\Action.lua:416
UnitID = "target"
UseCache = true
UnitExists = true
IsActionInRange = defined @interface\AddOns\HeroLib\Class\Unit\Target\Range.lua:23
UnitGUID = "Creature-0-4251-2222-2990-159747-00003FAA64"
UnitName = "Reine perce-moelle"
UnitNPCID = 159747
}
ThisSpell = nil
Filter = "HELPFUL|PLAYER"
Full = nil
GUID = "Creature-0-4251-2222-2990-159747-00003FAA64"
UnitID = "target"
(*temporary) = {
UnitCanBeAttacked = true
IsSpellInActionRange = defined @interface\AddOns\HeroLib\Events\Action.lua:426
IsItemInActionRange = defined @interface\AddOns\HeroLib\Events\Action.lua:416
UnitID = "target"
UseCache = true
UnitExists = true
IsActionInRange = defined @interface\AddOns\HeroLib\Class\Unit\Target\Range.lua:23
UnitGUID = "Creature-0-4251-2222-2990-159747-00003FAA64"
UnitName = "Reine perce-moelle"
UnitNPCID = 159747
}
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index local 'ThisSpell' (a nil value)"
UnitAura = defined =[C]:-1

This is a HeroRotation error, not HeroLib.

This was previously fixed in commit herotc/hero-rotation@1717f3d