We use Popups, TextExtracts, PageImages on our wiki.
We have lots of pages which have no text before the first section heading. In this case, the page preview used to show "..." (1.36), now it says "There was an issue displaying this preview" (1.39)
We have other pages that have no text before the section heading but do have an image. The preview used to show "..." and the image (1.36), now it shows "issue" and no image (1.39)
How can we regain the previous functionality that's been perfectly right for us?