I am also having the same issue on a site. I have several other WP sites that are fine and it’s just this one which only has submit for review and no where to review it! I’ve have also noticed that the option to ‘Use as Post Thumbnail’ has disappeared!
The site in question has only just recently relaunched and as a result of the relaunch traffic to the site has been high and it has exceeded its bandwidth allowance. Is there anyway this could be effecting WP? I am still able to access the site and login to WordPress I just can not post anything.
Any help would be greatly appreciated.