NaturalOne Dependencies Bug

Is it a bug, a feature or a configuration issue?
When coding in Natural One, it ignores the following line when showing the upsteam and downstream dependencies.
INPUT WINDOW=’window name’ USING MAP ‘map name’

E.G.
DEFINE WINDOW EXAMPLE1 SIZE 1960 BASE 4/11 FRAMED
INPUT WINDOW=‘EXAMPLE1’ USING MAP ‘EXAMPLM1’ /
Not shown in dependencies
INPUT USING MAP ‘EXAMPLM2’ /* Is show in dependencies

The programme has the following dependencies.
image

image

And the maps show these dependencies.
EXAMPLM1
image

image

EXAMPLM2
image

image

It just an annoying issue as you can’t rely on the dependencies panes.

If anyone knows how to fix this it would be appreciated.

Thanks

Colin.