Did anyone get an answer to "looks like we need more info" when I've checked and double checked--I've done all my sections and it still won't let me submit?

It appears that you may be in a loop. To resolve this issue clear your cookies and your cache on your computer. 

Here are the official instructions for the most popular browsers:

• Google Chrome
• Mozilla Firefox
• Microsoft Internet Explorer 11 (use the drop-down to select earlier versions)
• Microsoft Edge
• Apple Cache
• Apple Safari

After clearing the data, close your browser and reopen your return. You should not have any further issues once you log back in.