NFS Mount Not working sub folders

[noz1380]

I have a Pi4 2gb running OS4 Alfa13.

I have retroNAS setup correctly with the NFS shares available and tested thro Ubuntu server.

OS4 will mount to "retronas_IP:/storage" but not "retronas_IP:/storage/rgbpi-OS4"

In addition I dont have sudo rights to ammend fstab to test a mount.

In addition I'm not sure that the NFS likes symlinks, but I need to test further.