Sketch in drawing turns brown with update

I have a view of one of my models on a sketch and then some boxes sketched in over the view to show zones of it.  I have them filled in with hatch marks and coloured for clarity.  Whenever I click outside of the view though, the hatching turns brown or silver/white.  Anyone seen this before?  Any thoughts on how I can keep them coloured in?  Thanks.

SolidworksDrawings And Detailing