WowAce

Quartz Addon Fix Guide (Interface / Config / GCD Errors)

⚠ Before you start, make a backup of all original files.

1️⃣ Fix: Quartz not loading (Interface version issue)

Path

_retail_/Interface/AddOns/Quartz/Quartz.toc

Open Quartz.toc with Notepad

On the 2nd line, add 120000 to the ## Interface: value

Example

## Interface: 120000

Save the file

✅ Quartz will now load properly in-game.

2️⃣ Fix: Quartz loads but the settings window won’t open

Path

_retail_/Interface/AddOns/Quartz/Config.lua

Open Config.lua with Notepad

Locate line 201

❌ Remove this line

Settings.OpenToCategory("Quartz 3")

✅ Replace it with the following code

local category = Settings.GetCategory("Quartz 3")

if category then

Settings.OpenToCategory(category:GetID())

else

LibStub("AceConfigDialog-3.0"):Open("Quartz3")

end

Save and run /reload or restart the game

✔ Result

Typing /quartz in chat opens the Quartz settings panel directly

You can resize the window by dragging the bottom-right corner

3️⃣ Fix: Repeated Quartz errors during combat (GCD-related)

BugGrabber / Lua error spam during combat

→ Fixed by preventing hard errors using pcall

Path

_retail_/Interface/AddOns/Quartz/modules/GCD.lua

Open GCD.lua with Notepad

Press Ctrl + F and search for:

function GCD:CheckGCD

❌ Delete the entire original function

function GCD:CheckGCD(event, unit, guid, spell)

if unit == "player" then

local start, dur

if C_Spell and C_Spell.GetSpellCooldown then

local cooldown = C_Spell.GetSpellCooldown(spell)

if cooldown then

start, dur = cooldown.startTime, cooldown.duration

end

else

start, dur = GetSpellCooldown(spell)

end

if dur and dur > 0 and dur <= 1.5 then

starttime = start

duration = dur

gcdbar:Show()

end

end

end

✅ Replace it with this version

function GCD:CheckGCD(event, unit, guid, spell)

if unit == "player" then

local start, dur

if C_Spell and C_Spell.GetSpellCooldown then

local cooldown = C_Spell.GetSpellCooldown(spell)

if cooldown then

start, dur = cooldown.startTime, cooldown.duration

end

else

start, dur = GetSpellCooldown(spell)

end

local success, result = pcall(function()

return dur and dur > 0 and dur <= 1.5

end)

if success and result then

starttime = start

duration = dur

gcdbar:Show()

end

end

end

Save and /reload or restart the game

✔ Result

No more Quartz-related errors during combat

BugGrabber stays quiet

In reply to topkid1219:

Are you able to fix this bug in interrupt.lua? It does not happen when Quartz is disabled so I'm assuming it is the problem.

10x [ADDON_ACTION_FORBIDDEN] AddOn 'BlizzMove' tried to call the protected function 'AceEvent30Frame:RegisterEvent()'.

[!BugGrabber/BugGrabber.lua]:583: in function '?'

[!BugGrabber/BugGrabber.lua]:507: in function <!BugGrabber/BugGrabber.lua:507>

[C]: in function 'RegisterEvent'

[BlizzMove/Libs/AceEvent-3.0-4/AceEvent-3.0.lua]:33: in function 'OnUsed'

[!WilduTools/libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua]:132: in function 'RegisterEvent'

[Quartz/modules/Interrupt.lua]:49: in function <Quartz/modules/Interrupt.lua:48>

[C]: ?

[!WilduTools/libs/AceAddon-3.0-13/AceAddon-3.0.lua]:66: in function <...ddOns/!WilduTools/libs/AceAddon-3.0/AceAddon-3.0.lua:61>

[!WilduTools/libs/AceAddon-3.0-13/AceAddon-3.0.lua]:523: in function 'EnableAddon'

[!WilduTools/libs/AceAddon-3.0-13/AceAddon-3.0.lua]:536: in function 'EnableAddon'

[!WilduTools/libs/AceAddon-3.0-13/AceAddon-3.0.lua]:626: in function <...ddOns/!WilduTools/libs/AceAddon-3.0/AceAddon-3.0.lua:611>

Locals:

self = <table> {

}

event = "ADDON_ACTION_FORBIDDEN"

addonName = "BlizzMove"

addonFunc = "AceEvent30Frame:RegisterEvent()"

name = "BlizzMove"

badAddons = <table> {

BlizzMove = true

}

In reply to Moreorlessmaybe:

This is not a Quartz Problem !

I had the same with Bartender4.

This is a Blizz Move ADDON Problem, or others...DIK waht is WilduTools is.

I had 4 ADDON*s who crashed Bartender4 with Blocking and dont load.

Make a backup and delete this other addon´s and try if Quartz working alone, so I found my real ADDON`s that dosnt work, and all was ok after i delete them or take a new version.

In reply to topkid1219: only "player" casting bar works / other casting bar does not work

it means time to say "thx and goodbye Quartz"

In reply to topkid1219:

It does "work while not throwing lua errors but does cause taint with just these fixes in place.

Just loading the addon alone causes the taint disable/ignore error.

Hi,

I updated the .toc file to 120000, but everytime I cast a spell the following message pops up:

Message: Interface/AddOns/Quartz/modules/GCD.lua:116: attempt to compare local 'dur' (a secret value)

Time: Wed Jan 21 22:11:51 2026

Count: 6

Stack:

[Interface/AddOns/Quartz/modules/GCD.lua]:116: in function '?'

[Interface/AddOns/DBM-Core/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua]:109: in function <...ore/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:109>

[C]: ?

[Interface/AddOns/DBM-Core/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua]:19: in function <...ore/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:15>

[Interface/AddOns/DBM-Core/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua]:54: in function 'Fire'

[Interface/AddOns/Quartz/libs/AceEvent-3.0/AceEvent-3.0.lua]:120: in function <...ace/AddOns/Quartz/libs/AceEvent-3.0/AceEvent-3.0.lua:119>

Locals:

self = <table> {

modules = <table> {

}

defaultModuleLibraries = <table> {

}

name = "Quartz3_GCD"

orderedModules = <table> {

}

db = <table> {

}

baseName = "Quartz"

enabledState = true

defaultModuleState = true

moduleName = "GCD"

}

event = "UNIT_SPELLCAST_START"

unit = "player"

guid = "Cast-3-4254-2552-580-34914-0041714117"

spell = 34914

start = <no value>

dur = <no value>

(*temporary) = <table> {

isOnGCD = true

modRate = <no value>

activeCategory = <no value>

isEnabled = <no value>

startTime = <no value>

timeUntilEndOfStartRecovery = <no value>

duration = <no value>

}

(*temporary) = <no value>

(*temporary) = "attempt to compare local 'dur' (a secret value)"

starttime = 7241.890000

duration = 1.137000

gcdbar = Quartz3GCDBar {

Center = Texture {

}

RightEdge = Texture {

}

backdropInfo = <table> {

}

BottomEdge = Texture {

}

BottomLeftCorner = Texture {

}

BottomRightCorner = Texture {

}

TopEdge = Texture {

}

TopRightCorner = Texture {

}

TopLeftCorner = Texture {

}

LeftEdge = Texture {

}

}

Anyone knows how to fix this?

Ty

I've managed to get this working in Midnight by updating the toc file with 12000. Hopefully the addon author will release a proper version soon :)

For anyone wondering how to do it

Locate the toc file in the quartz directory in your addon folder

update Interface with 12000. It should read something like this

## Title: Quartz

## Interface: 120000, 11508,20505,50503,110207

## Notes: Modular casting bar.

## Author: Nevcairiel, Nymbia

You can do this with any addon that isn't updated but there is a chance it may not work with the new blizzard APIs. I've been running Quartz for about 20 mins now with this change and I'm not getting any lua errors so hoping its all good

In reply to Mencc: Works great. Thank you so much.

Unfortunately, this doesn't work for bagnon, decursive, and MSBT.

In reply to YetiMitLaser: I think MSBT will be busted for good due to the changes anyway unfortunately.

In reply to Mencc:

This works but it throws an Ace error at Blizzmove.

In reply to Mencc: This did work, but you need to disable target casts or it throws an error everytime they cast a spell

In reply to Mencc: It works but is incompatible with Better Timeline

if the addons doesn't show on ur list after updating it, simply just right click on it and Reinstall, its working with me now

For anyone having issues in BCC such as the addon not showing up in your list, or giving you errors. If you download the "3.7.16a" version (for vanilla classic, MoP, etc.) manually and replace all the files in the BCC quartz folder with it, you should be able to use quartz in BCC with no errors and function as normal.

And for no apparent reason Quartz is now in my WoW TBC Anniv. add-on list and it works fine again.

I didn;t do a thing to it but it started working again after it showed up.

Will this be updated for midnight?

In reply to Mrcows063: Second this i love using quartz and hope it gets updated

Confirmed latest version broke Quartz. It doesn't show up in, in game add-on list and Quartz Rank is showing Dependency Missing.

3.7.17 (2026-01-18) latest changelog broke it for anniversary realms, dont work at all now

The addon worked a sec ago not in bg dosent work after bg dosent work fix it bc dosent work dosent show in addons