Mediawiki 1.39.6, PHP 7.4.3, MySQL 8.0.36
Prior to 1.39.6, the PagePreview/Popup/TextExtracts either showed some text from the target article or it showed "..." The ellipsis always occured when there was _no text before the first heading_. But, if there was an associated image, the preview showed "..." on the left-hand side and the image on the right-hand.
Now with the upgrade, the preview is "Es gab ein Problem bei der Anzeige dieser Vorschau" / problems displaying the preview. No image being displayed.
How can we regain the previous behaviour?