Addon not loading for TBC Anniversary (PTR Version)

[Caisman24]

Is there an existing issue for this?

• I have searched the existing open and closed issues.

Description

I tested WeakAuras on the newly released TBC Anniversary PTR, and I am getting a large number of Lua errors on login before any auras load. The PTR appears to run on a new TBC build that is different from the TBC Classic client from ~5 years ago, and it includes several Retail UI systems (for example, the Edit Mode interface).

WeakAuras Version Used: Classic/TBC version with Interface 110205 (no updated version available on CurseForge at time of testing)

The current game build is: 20505

WeakAuras Version

5.20.6

World of Warcraft Flavor

Classic Era

World of Warcraft Region

EU

Tested with only WeakAuras

I got this issue with only WeakAuras enabled

Lua Error

Message: Interface/AddOns/WeakAuras/Init.lua:516: attempt to index global 'AddonCompartmentFrame' (a nil value)
Time: Thu Nov 20 15:03:19 2025
Count: 1
Stack:

Locals:


Message: Interface/AddOns/WeakAuras/Compatibility.lua:3: attempt to call field 'IsLibsOK' (a nil value)
Time: Thu Nov 20 15:03:19 2025
Count: 1
Stack:

Locals:

Message: Interface/AddOns/WeakAuras/SubscribableObject.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/Features.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/TimeMachine.lua:6: attempt to index field 'Features' (a nil value)
Message: Interface/AddOns/WeakAuras/Types_Retail.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/Types.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/Prototypes.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/Profiling.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/WeakAuras.lua:260: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/History.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/Transmission.lua:21: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/Modernize.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/Animations.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/Conditions.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: ...erface/AddOns/WeakAuras/LibSpecializationWrapper.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/BuffTrigger2.lua:46: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/GenericTrigger.lua:48: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/BossMods.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/TSUHelpers.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/AuraWarnings.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/AuraEnvironment.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: ...e/AddOns/WeakAuras/AuraEnvironmentWrappedSystems.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/DebugLog.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/Dragonriding.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: ...ddOns/WeakAuras/RegionTypes/SmoothStatusBarMixin.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: ...ace/AddOns/WeakAuras/RegionTypes/RegionPrototype.lua:1: attempt to call field 'IsLibsOK' (a nil value)
...
...
Message: Interface/AddOns/WeakAuras/Legendaries.lua:1: attempt to call field 'IsLibsOK' (a nil value)
Message: Interface/AddOns/WeakAuras/DiscordList.lua:1: attempt to call field 'IsLibsOK' (a nil value)

Reproduction Steps

1. Install Weak-Aura Version 5.20.6 (with interface 110205)
2. Launch PTR (Classic Era) - this is the PTR for TBC Anniversary
3. Load out of date AddOns
4. Lua errors incoming

Last Good Version

No response

Screenshots

No response

Export String

Bisector Report

[DieQuelle]

/run print(GetBuildInfo())

[weaver-0f-fate]

Is there a fix for WeakAuras on the TBC Anniversary PTR yet?

[InfusOnWoW]

We generally don't provide any support for PTR realms.

[Goose58]

The following steps helped me get WAs working on the PTR. Just need to modify a few luas in the addon using the 5.20.7 version

Go to WeakAuras/Init.lua replace

function WeakAuras. IsClassicEra()
return flavor == 1
end

with

function WeakAuras. IsClassicEra()
return true
end

Replace

function WeakAuras.IsRetail()
return flavor == 10
end

with

function WeakAuras. IsRetail()
return false
end

Go to WeakAuras/Transmission.lua delete all lines that have

ChatFrame_AddMessageEventFilter

Go to WeakAuras/Libs/Chomp/Internal.lua delete the one line that has

ChatFrame_AddMessageEventFilter