eteb3
I surveyed this path yesterday, walking S from the rowing club. Exiting their curtilage there is a clear path S to enter the field whose westerly edge the fp is currently shown as following. Once in the field, signs of the path quickly fade away on the ground. I followed the field edge as OSM currently shows.

The path is all but impassible at the field boundary just N of this note: there is a break in the fence, but I had to clear ~5m of nettles to reach it and scramble down and up a ditch to enter the wood.

At that point, where the fp meets the field boundary, is a notice purporting to be a copy of the "Notice of Order & Decision" of a public enquiry relating to the path. Enquiry apparently concluded that the Surveying Authority had had no justification for including in the definitive map and statement the path running SSW of this point ("NG1"). 

I don't think that affects the legal status of the path: going by the copy notice, the order does not order the path to be removed from the map and definitive statement.

Bold type for emphasis in the copy order makes me think it may have been placed there by an aggrieved landowner. 

I plan to contact the local Ramblers and see if they have anything on this.