There might be a charge timer enabled. Not sure on a 2012 where the button is, but you should find the charge timer override button to the left of the steering wheel:
Press it, and the middle charge light on the dash will come on. Then, plug in the stock charger (EVSE) and see if it starts charging...
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV