To quote the user:
Recently, I've noticed that articles no longer load properly on the older "paperwhite" Kindle that I often use. Just as an article completes loading the page disappears and only the search box with a left-arrow icon remain on screen. If the arrow is clicked the article will then reappear. This happens on every article every time. Have there been some recent global change to the underlying article markup or style sheet?
(I wonder if this is one of the old Kindle's using Netfront instead of WebKit ?)