Nav V route (again)

[vRSG60]

Can some bright spark explain why the route shown below as highlighted in Basecamp when followed by the Nav V takes us left off the route through Holwell > Westwell > Tanners lane into Burford?

 

[leedude03]

I would think this is either a settings issue in preferences in basecamp vs your nav, or there are not enough via/waypoints to nail it to stay as you want it.

 

[Wapping]

I'd put my money on preference settings.

Check, amend (if and as required) and then report back.