Doesn't work for me either. Returning to 3.4.1 fixes it, but disables access to the ROM menu (select) if you've updated to 10.3.
10.3 + GW 3.4.1 -> CIA support / Not ROM support
10.3 + GW 3.5 -> Not CIA support / ROM support
10.1 + GW 3.4.1 -> CIA support / ROM support <==== Better stay on this...