Hey SoulPixel,
I'm glad you're enjoying Post-Processing FX ^^
Do not disable the "draw_layer" parameter of the ppfx_layer_apply() function. I had made a modification to that function and it hasn't been updated in the manual yet, I will soon.
The error line is a Feather xD thing, so it's not a PPFX issue currently, don't worry.
Remember to pay attention to the order in which you insert the layer id, and check if there is a "warning" message in the Console.
Cheers! ^^
