You probably have enemies, their health bars .. and the platforms on layers with different parallax property's.
Enemies and their health bars on layers with different parallax property's can be done (calculated) with ...
CanvasToLayerX(layer, x, y)
CanvasToLayerY(layer, x, y)
Calculate the layout co-ordinates underneath a position in canvas co-ordinates for a given layer.
LayerToCanvasX(layer, x, y)
LayerToCanvasY(layer, x, y)
Calculate the canvas co-ordinates above a position in layout co-ordinates for a given layer.
Solid platforms and the characters, with a platform behaviour, that are supposed to interact with those platforms can not ever be on layers with different parallax.
We do not ask you to share your game, we ask you to share the problem. A problem can usually be isolated in a simplified project. Like this:
Besides the act of sharing, you learn a LOT by isolating the problem in a simple .capx. More then you expect at this point.