Thank you for your question. Profile Pro can't insert CB tabs on registration or profile edit page. It is not a limitation, but it is the way it works. On registration and profile edit pages you need to insert CB fields separately, one by one.
Besides usual CB tabs (containing CB fields), which can not be added on registration, there are specific CB tabs, like AcyMailing subscription or CB Captcha, which can be inserted on registration by Profile Pro. Magic Window on screenshot you've provided shows a list of your CB tabs, but only some of them could be displayed on registration and others will get message like "''Profile Pro' not found".