the issue might be related to how Magento is generating or caching the video thumbnails on the frontend. Sometimes permissions on the pub/media or cache folders can prevent new thumbnails from being saved properly, even if they show correctly in the admin panel. Clearing the cache and reindexing often helps, and double-checking the video file paths for any discrepancies can also resolve 404 errors.
I’ve seen similar challenges when displaying dynamic media content for live events or large product galleries — it’s a bit like managing multimedia for large tours, such as the Morgan Wallen Tour, where ensuring all visuals display correctly across platforms is critical. Once the cache and paths are fixed, everything usually syncs correctly on the frontend.
