403 error when calling `system.accountInitialize()` for Hedera network

[mindhacker42]

When calling system.accountInitialize() for Hedera network I get 403 query error. After checking SDK code, this happens after call to getHederaAccount().
I am using client authentication if that matters. I didn't get 403 error for any other API request.

This happens on latest master 7d65484.

[EBGToo]

Can you describe your environment? Is this in the BRD App? Or are you using WalletKit directly - and the error is in the Core Demo App?