Issue writing beacon with SDK grather than 1.5.1

[cerrywallace]

Hi, I'm having issue writing beacon with you SDK. I can read configuration but when I try to write a new configuration it fails.
All worked fine untill version 1.5.1. Version 2.0 had issues and also version 3.0 avoid me to write beacon with SDK (so actually I blocked the pod version to 1.5.1).
When I try to write a configuration with an UIID, major and minor values set, I get this error:

Error Domain=io.kontakt.error.response.serializer Code=-1011 "Request failed: client error (422)" UserInfo={io.kontakt.response.serializer.error.response=<NSHTTPURLResponse: 0x1c0c255c0> { URL: https://api.kontakt.io/config/create } { Status Code: 422, Headers {
"Access-Control-Allow-Origin" = (
"*"
);
"Content-Length" = (
650
);
"Content-Type" = (
"application/json;charset=UTF-8"
);
Date = (
"Sun, 10 Mar 2019 21:19:41 GMT"
);
Server = (
"Apache/2.4.25 (Debian)"
);
"access-control-allow-headers" = (
"Content-Type, Api-Key, Accept, Authorization, Provider"
);
"access-control-allow-methods" = (
"GET, POST, DELETE, PUT, OPTIONS"
);
} }, io.kontakt.response.server.error.object={
cause = ValidationError;
details = (
{
error = "INVALID_VALUE";
field = "customConfiguration.8132";
message = "Custom configuration property with id 8132 is not supported.";
},
{
error = "INVALID_VALUE";
field = "customConfiguration.813c";
message = "Custom configuration property with id 813c is not supported.";
},
{
error = "INVALID_VALUE";
field = "customConfiguration.a005";
message = "Custom configuration property with id a005 is not supported.";
},
{
error = "INVALID_VALUE";
field = "customConfiguration.a004";
message = "Custom configuration property with id a004 is not supported.";
}
);
id = "API_ERROR_1552252781773";
message = "Validation failed.";
status = 422;
}, NSErrorFailingURLKey=https://api.kontakt.io/config/create, NSLocalizedDescription=Request failed: client error (422)}

Can you help me? Thank you very much.