I mean, I know rep changes because of caching. I also know the rep in the top bar is more "dynamic" than most other parts of the site, but reputation differing on the same section of the same page?
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Did you load new questions by clicking the banner? That will load new questions with the current values for their reputation, while any occurrences of their name already in the list will show the values that they were when you originally loaded the page. Both values show the same for me.
I'm not aware of any other way that this could happen.