Hm one thing to consider is if you’re using the comparefloat node you don’t also need a branch node.
I hope you have all those connected to something and not standing empty alone like you have in this screenshot (as it would do nothing in the state shown, since nothing is feeding into the Exec pin on Comparefloat).
Also your MakePostProcessSettings node doesn’t actually set anything on your post process, it just creates a set of data that can be used to set the post process if the execution wires (the white ones) were to feed into something coming off of a Post Process object reference that sets those things.