WoWInterface - Weakauras: Delaying trigger check

I am attempting to change this weakaura https://wago.io/IxMhs-_dB to instead of using the READY_CHECK event instead use the EQUIPMENT_SWAP_FINISHED event.

However just swapping to EQUIPMENT_SWAP_FINISHED leads to false positives, my guess being that the event is triggered before the game actually processes the items being added.

Is there a way to delay the trigger check a few seconds to ensure everything is correct before returning?

I have tried using C_Timer.After but that doesnt impact the return value of the custom trigger function

Code:

function(trigger)

    

    spellId = aura_env.spellId

    return C_Timer.After(3, function()

            if (GetPlayerAuraBySpellID(spellId) == nil) then

                print("bugged")

                    return true

                else

                    return false

                end

        end)

    end

obviously those returns are meaningless, but I think they show the goal of what I am looking to do here. print("bugged") being where i want to show the aura.