Accessibility : `Publish your code` Dialog not accessible by NVDA screen reader.

[marsonparulian]

After clicking Mark as complete button, a Publish your code.. dialog appears.

The dialog is not accessible by screen reader.
I use combination of NVDA / magnifying tool. I have used all keys, but still not accessible.
I have not try other screen readers since I don't have access to them.

This issue could prevent fully screen users to publish their solutions.
Thank you.