This is the first time I've seen this. I opened DIY SE main page and here's how the list looked like:
it looks just fine except the top two questions are swapped.
I've seen this rather old question, maybe it's a similar problem.
This has been this way for a long time. When there's an edit or a new answer to a question, the displayed data is updated immediately, but it may take a moment for the sort order to be updated (retrieving data for a particular question is much cheaper than doing all kinds of sorting, thus the latter is more heavily cached).
As long as the delay is below a minute or so (like in your example where it's 38 seconds), this should be acceptable. Beyond that – like in the old report you found – it's probably a bug.