StepMania 5 - Banner via ActorProxy Problem

Def.ActorProxy {
    Name="BannerProxy";
    BeginCommand=function(self)
        local WF = SCREENMAN:GetTopScreen():GetChild('Banner');
        local CDou, FDou, PGwan;

        -- I don't understand WHY these return 1, but they do.
        -- Maybe this is a StepMania bug?

        -- this returns 1
        CDou = WF:GetWidth();
        -- this also returns 1
        FDou = WF:GetHeight();
        -- this is 1/1 which evaluates to 1!
        PGwan = CDou/FDou;


        -- SCREENMAN:SystemMessage() will print out the values
        -- and is a good means of inspecting variables.
        SCREENMAN:SystemMessage("CDou: " .. CDou .. ", FDou: " .. FDou .. ", PGwan: " .. PGwan);


        -- this will never happen
        if PGwan > 3.17 and PGwan < 3.23 then
            WF:scaletoclipped(256,80);

        -- this will also never happen
        elseif PGwan > 2.53 and PGwan < 2.59 then
            WF:scaletoclipped(204.8,80);

        -- this will always happen
        else
            WF:scaletoclipped((256,80);
        end;

        self:SetTarget(WF);
    end;
};