Old topic but just wanna reply.

I have the same problem. it's never have been solved for me the easy way. Every time on every build, even the newest builds from Recalbox.

Every time i have to do the settings by hand. Set: Maxtry=15 in the file etc/init.d/S11share

Then the External Drive WD Elements 2TB formatted NTFS is recognized in Recalbox and puts the share folder named Recalbox on it. Then the problem is solved for me.