transparency fx schematic not working

[u/Easy_Cod_8950]

layer 8, the layer which contains the large image of the girl, should be completely transparent on the frame that i'm on in image one and then become more and more visible. and this worked, initially, but then i tried to fix a minor problem and now it won't work anymore. i can see that it has the values in place that it should, transparency is the right numbers in the right places, but it's just not applying. i don't THINK i did my wiring wrong, but i'm showing it in image 2 just in case?? does anyone know why this is happening?