I’m having the same problem. I can click on a “page” I want to view, but often can’t get out of the few posts of that page.
If I go to last page, I can’t scroll upwards to see preceding posts.
I have an iPad and recently installed the latest update, so a few minor things aren’t acting exactly the way they used to, but this problem precedes that.
I did reboot my machine, but that doesn’t help.