Styles > Edges > Color > "All same" won't keep its setting when the project is saved

Hi there!  I am new to your forum and I am using Sketchup 2016 Pro and had this exact problem with 2015 Pro version.  The problem is when I add color to a grouped object the black edge outline disappears making the detail difficult to see.  I have spent over half a day total trying to resolve this.  The black lines show up fine when the "All same" is selected.  I then save the Style and it still retains the black edge and looks fine.  If I wait for the Autosave feature to save the room or if I select it manually, the Color reverts back to "By material" every time and the edges disappear again.  Do you have any idea how I could fix this?

Thank you!!