I just installed the latest build as well, and did not see the shares until I accessed my RPi2 (from my Windows PC) by IP address (in my case as: \\192.168.0.108) and rebooted (after completing my initial configuration and setup) ... could be related to the "Auto-Share External Drives" setting/feature in LibreELEC Settings (Services, Samba)?
I'm not sure I follow you.. I've checked and the Auto-Share external drives is set.. however i have no external drives.. i'm after the userdata.. i've rebooted several times and i'm accessing via UNC path (\\192.168.1.26)