Unable to turn off Railsignals in train map view

[Diablo]

Hi,

When I open the map view through a train (to set a destination for instance) the rail signals on the map are visible.
However when I turn them of with the map options at the top right of the screen, then close the map view, then reopen map view through a train, the rail signals visuals on the map are on again.
Is there a way to just leave them off?