How to replicate:
Edit any page in a way that changes the text
Click "save"
Go back to home and immediately re-navigate back to the page
The page will still look like a prior version, even if you access it by clicking the latest edit (and the latest edit shows up in the home page)
Oddly enough, the "graph view" of the page will be updated if you add links, but the text will still look like a prior version that doesn't match the graph (i.e. there will be links in the graph view that aren't on the page if you added links to the text, and extra links will still appear on the graph even after you delete links in the text)