Global Mapper v25.0

Flow Paths using Line Style "V Track (Opens towards start of Solid Line)"

G'day Folks,

Working as a surface water engineer I probably use the "Create Watershed' tool in GM more than any other and generally its really good! However, when I assign the line style "V Track (Opens towards start of Solid Line)"  to the resulting flow paths I end up with flow direction arrows pointing upstream (as shown in attached screen grab where the terrain falls from bottom to top of view).  I realise this occurs because GM creates a continuous flow path line from upstream to downstream and back upstream again. In order to correct this problem I manually break the lines and use the reverse order of vertices command, buts its VERY painstaking!

Does anyone have a workaround to fix this?

Any help much appreciated.