Was wondering if anyone else is experiencing the same issue.
Create a layer and put something on it, like some walls and a player or something. Make the layout scroll to the player, and make it larger than the app window.
Now create a second layer behind the first.
Apply a tiled background or something to that, then adjust either the scrollrate or zoomrate for that layer... run app and see if it works properly , or if the attributes you adjusted also affect the first layer as well.
It even seems to mess up the other layer if I put a layer effect on the second layer.