Anchoring Getting Confused ..

[Xrystal]

I have this block of code but the line pointed to insists that I am anchoring the button to itself but try as I might I can't see why as the idx is clearly different. Now a similar block of code that doesn't go on a second line works fine and I used that code as a base for this. The only difference between the buttons outside of their alignment is that the working block contains CheckButtons that aren't inherited from SecureActionButtonTemplate with checkbutton functionality for toggling whilst the one with problems are Buttons that are inherited from SecureActionButtonTemplate with a cooldown frame added, other than that they have the same base xml framework

The problem block that has 2 lines of buttons

local function InitialiseButtons()
 
    for idx = 1,10 do
        local button = XMP_Main.ButtonFrame.Buttons[idx]
        local prevButton = XMP_Main.ButtonFrame.Buttons[idx - 1]
        if idx == 1 then
            button:SetPoint("TOPLEFT",5,-5)
        elseif idx == 6 then
            button:SetPoint("BOTTOMLEFT",5,5)
        else
            button:SetPoint("TOPLEFT",prevButton,"TOPRIGHT",5,0)   -- < HERE
        end
        button:SetWidth(48)
        button:SetHeight(48)
        button:Show()
    end
 
end

This is the code I used as a basis for the one above .. this one does a straight line of x buttons and works completely fine

local idx = 1
    for i,v in pairs(addonData.TaxiMaps) do 
        local button = frame.Buttons[idx]
        local prevButton = frame.Buttons[idx-1]
        if idx == 1 then
            button:SetPoint("LEFT",10,0)
        else
            button:SetPoint("TOPLEFT",prevButton,"TOPRIGHT", 5, 0)
        end
        idx = idx + 1
    end

It's bound to be something really simple that is staring me in the face but I can't see it at all so any help is appreciated.

[Xrystal]

Well it seems that parentArray cannot be used on both the inherited frame and the frame inheriting it ..

    <Button name = "XMP_IconTemplate" parentArray = "Buttons" virtual = "true">
        <Size x="40" y="40"/>

        <Layers>
            <Layer level="BACKGROUND">
                <Texture parentKey="Icon" />
            </Layer>
        </Layers>

        <NormalTexture parentKey="NormalTexture" file="Interface\Buttons\UI-EmptySlot" setAllPoints = "true"/>
        <PushedTexture parentKey ="PushedTexture" file="Interface\Buttons\CheckButtonHilight" alphaMode = "ADD" setAllPoints = "true"/>
        <HighlightTexture parentKey = "HighlightTexture" file="Interface\Buttons\CheckButtonHilight"  alphaMode = "ADD" setAllPoints = "true"/>  
    </Button>

    <Button name = "XMP_SpellButtonTemplate" inherits = "XMP_IconTemplate,SecureActionButtonTemplate" virtual = "true">

        <Frames>
            <Cooldown inherits="CooldownFrameTemplate" parentKey="Cooldown" />
        </Frames>

    </Button>

If I add the parentArray descriptor to the SpellButtonTemplate then I get the anchoring to itself error message. If I remove it everything works as expected.