Nissan Repair Questions? Ask a Mechanic for Answers ASAP
This indicates an problem with the reverse clutch in the gearbox. Also known as high clutch to some.
Chances are if you inspect the fluid you will notice it is dark in color and may even smell burnt. Thats clutch material in the fluid.
Unfortunately there is not much you can do other then rebuild or replace the gearbox as the case will need to be seperated and the dis-assembled to replace the reverse clutch.