Thanks for reaching out! We have checked the video and the custom thumbnail seem to be showing up without a problem. If it's still not showing on your end we suggest you clear the browser's cache and cookies or try it on a different browser. Let us know if that helps.
@TeamYouTube i have a problem. My custom tumbnails are not showing in search results (but do show in my channel and list) PLZ Helppic.twitter.com/yVDgPC3nmL
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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