Apple Configurator error code 2003 MCCAndMNCs is invalid

Hi,

I have updated my MBP to OS X 10.10 (Yosemite) and installed the latest Apple Configurator (AC) 1.7.1.

I have an existing Profile that includes one (1) payload: Wi-Fi. This profile is used for Passpoint (HS2.0).

In the previous version of AC (1.6 I think), the profile I created worked (iPhone 5S with iOS 7 installed, AC on OS X Mavericks).

Here are the most important fields from the Payload:

Security Type is: WPA2 Enterprise

EAP type field is: EAP-AKA

MCC/MNCs field is: MCC=505, MNC=1 (I can't input 01 into this field, and the MNC is meant to be 2 digits, but the AC just replaces it with 1)

When I try to re-install this Wi-Fi Profile on an iOS8, the AC complains with the following error:

1. Has anyone seen this error before?
2. Where can I get a list of error codes that the Apple Configurator (1.7) uses?
3. Are there any workarounds available?

Thanks,

Al