That's strange – can you try reconnecting to the internet and refreshing your browser? Once done, try to reupload the video with these steps https://yt.be/help/L16m on different devices. Let us know how it goes!
@TeamYouTube
I’ve tried twice now to upload a video using an exported MP4 file. Both times the video would upload and then during the processing, it would say ‘Video has failed to process. Please make sure you are uploading a supported file type.’ I’m uploading an MP4.
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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