Yes, looks like a bug in the standard Wizard functionality, but still unable to findout how to fix it ?
regard payment using coinbase.com im looking to make specific type of clients through (Custom Wizard) to be redirected to pay $10 after registeration to complete the group fees, and this group fees costs $10… so once they complete the Custom Wizard information; they will be forward to coinbase to complete the payment in btc and admin will confirm the registration fees.