Thumbnails for Home Video media have the wrong aspect ratio on iOS. On my iPad, when 'browsing' or 'discovering' media in a Home Video Library, the thumbnails have an incorrect aspect ratio of 16:9. On the summary screen for a video, it shows the correct aspect ratio of 1:15 (which is the same as on the web-client when creating/editing/updating the library).
The thumbnails on the 'browse' and 'discover' screen on iOS need to be corrected and set to 1:1.5 like they are everywhere else.