What are you trying to do exactly ?
The anchor object makes sure that whatever the size of the project is, the object with the behaviour will be specifically positioned (ex: top left corner).
The tiled background plugin repeats the setted texture on all its size.
And finally the scroll to behaviour makes it so that in a bigger layout than the window's size, the object with the behaviour will always appear in the centre of the window (the "view" will adapt/move to the object's position).
I'm not sure what you mean/expect when you say "I have a anchored titled background that doesn't keep up with a object with scrollto behavior"