WowAce

I found in my case the error occurs when I checked more than one Hide Blizzard Frame.

So I put some codes in regarding functions in SUF's lua file.

I'm not sure this is the best way, but it works and didn't spit out any errors so far.

I'm very not a programmer, but I tried so hard to make this codes not being spaghetti.

* If this is right code and youu are goint to update with this, please note my nickname("Ssal") into patch note. I want to flex it to my friend :D

POI = ShadowedUnitFrames.lua Ln:687

local function hideBlizzardFrames(taint, ...)
    for i=1, select("#", ...) do
        local frame = select(i, ...)
        local old_parent = frame:GetParent()
        UnregisterUnitWatch(frame)
        frame:UnregisterAllEvents()
        frame:Hide()

        if( frame.manabar ) then frame.manabar:UnregisterAllEvents() end
        if( frame.healthbar ) then frame.healthbar:UnregisterAllEvents() end
        if( frame.spellbar ) then frame.spellbar:UnregisterAllEvents() end
        if( frame.powerBarAlt ) then frame.powerBarAlt:UnregisterAllEvents() end

        if( taint ) then
            frame.Show = ShadowUF.noop
        elseif not( EditModeManagerFrame ) then --Classic?
            frame:SetParent(ShadowUF.hiddenFrame)
            frame:HookScript("OnShow", rehideFrame)
        else
            EditModeManagerFrame:HookScript("OnShow", function(self)
                frame:SetParent(old_parent)
                end
            )
            EditModeManagerFrame:HookScript("OnHide", function(self)
                frame:SetParent(ShadowUF.hiddenFrame)
                rehideFrame(frame)
                end
            )
        end
    end
end

Old modifying:

local function hideBlizzardFrames(taint, ...)
	for i=1, select("#", ...) do
		local frame = select(i, ...)
		UnregisterUnitWatch(frame)
		frame:UnregisterAllEvents()
		frame:Hide()

		if( frame.manabar ) then frame.manabar:UnregisterAllEvents() end
		if( frame.healthbar ) then frame.healthbar:UnregisterAllEvents() end
		if( frame.spellbar ) then frame.spellbar:UnregisterAllEvents() end
		if( frame.powerBarAlt ) then frame.powerBarAlt:UnregisterAllEvents() end

		if( taint ) then
			frame.Show = ShadowUF.noop
		elseif not( EditModeManagerFrame ) then
			frame:SetParent(ShadowUF.hiddenFrame)
			frame:HookScript("OnShow", rehideFrame)
		elseif EditModeManagerFrame:IsShown() then
			--noop
		end
	end
end

 Thx.

f-in amazing bro 

it works amazingly 

감사합니다 

you are my hero 

복받으세요