Yeah, I ran across something similar a while back. To do a universal fix requires going into each affected item and changing a line in the document itself: http://club.myce.com/f20/some-old-reviews-not-loading-properly-339214/#post2755387 â€¦Though the cause may differ this time around; can't rule anything out.
So if/when you stumble across this issue, keep reporting it (include the link to the story).
In the meantime, if you need to view something of a certainâ€¦vintage :bigsmile:, using a different browser or switching an in-browser setting will help. I'll do some testing to see if I can figure out how to do this for different browsers, where possibleï¼for example, in Chrome 40-something in OS X, I had to go to View -> Encoding -> Unicode (UTF8), which is different from what Matth had to set.