@Pregium I don't know if it's linked with what you're describing, but there's been a technical issue with the submission process since yesterday. Our team is working on it right now to fix it as soon as possible. Once it's fixed, I'll let you know so that you can try again and see if that was the issue or not.
Sorry for the inconvenience.
Edit: The issue should be fixed now. Let me know if you're still having any issue.