Dear Deva,
It looks like this only happens for new posts. If you build a CRED form for editing it is working properly.
If so, you can try adding this line in your CRED until a fix is available in next release:
<input type="hidden" name="_cred_cred_prefix_post_id" value="0">
Please let me know if you are satisfied with my answer and if I can help you with any other questions you might have.
Regards,
Caridad