Hi,
This issue is caused by a recent Vimeo platform update, they changed a couple?of things and by doing this they have broken functionality in third party scripts, like Vimeotheque.
The issue in this case (it’s not the only functionality?that got broken) is that they changed the URL’s of the video thumbnails. When Vimeotheque imports a video it stores its details?(including information about thumbnails) on the post meta. If any of the videos imported with Vimeotheque is displayed into a playlist made with either the block editor or the shortcode, Vimeotheque will use the image from the post meta, which comes from Vimeo CDN, to save bandwidth.
Unfortunately, since they modified the URL’s, the images for the videos imported before they implemented the change will have broken images, just like you noticed.
We’re working on an add-on to re-import the video details, it will be available in a couple of days for both the free and premium plugin version.
The other solution is to re-import your video posts. This means that you must delete the existing posts that have broken images and re-import them. Please use this solution just as a last resort; we’re working as fast as we can to finish the add-on in time.?
