Just in case it’s relevant, is the moderator who is finding the issue a regular moderator, or are they a “category moderator”?
The screenshots definitely indicate an issue. I haven’t been able to reproduce it yet though. Any additional details you can think of about the issue would be helpful.
Edit: maybe this is it. Testing on my local dev site, two posts from new users are in the review queue. Instead of visiting the review queue directly, if I click the first review item from my notification dropdown I get this:
If I then click the second notification, I get this:
After clicking the second notification, the title of the item in the review queue gets updated, but the body of the post is displaying the text content of the previous review item.
If instead of going to the review items by clicking the review queue notification I click the “Review” entry from the sidebar, the review items are displayed correctly:
I think this is a bug. Tentatively recategorizing it to Contribute > Bug