Can you share the SKP file so we can see what you've got? That would eliminate the guesswork.
Maybe all you need to do is turn off Section Fill.
Toggle it off in the Section toolbar...
Screenshot - 9_6_2019 , 1_18_01 PM.png
...or turn it off in the Styles Edit section...
Screenshot - 9_6_2019 , 1_18_23 PM.png
...or turn it off in the View menu.
Remember to update the style after editing it.