Forum:Letterboxed video thumbnail/poster images

Perhaps related to UCP, I've noticed that the thumbnail/poster images for new videos are not saved in the correct aspect ratio, leading to letterboxing. For example, compare the images at the top of the page on


 * https://letterkenny.fandom.com/wiki/Season_8
 * https://letterkenny.fandom.com/wiki/Season_9

The change is very obvious when you look at all videos by upload date, e.g. https://letterkenny.fandom.com/wiki/Special:NewFiles?mediatype=VIDEO&wpFormIdentifier=specialnewimages.

If anything, these days videos should be defaulting to 16:9 and not 4:3, but regardless, how can I correct the display of these items? How can I prevent future videos from having the same problem? -~