Take a look at the turn by turn for this route at 29.5 miles:
http://cycle.travel/map/journey/12612
The instruction is:
Slight right onto Chinthurst Lane 600m; becomes Poplar RoadChinthurst Lane does not become Poplar Road, it's a distinct right turn and is correct on OSM.
Strangely today if I get a short route from the middle of Shalford to just on the downs link path the turn is correctly shown in the TbT.