Blogger’s video upload is currently down. Our engineers are working on the problem.
Update, 7PM: Video upload has been restored to full functionality.
Update, 8:15PM: After being fixed for a bit, video uploads are failing again, languishing in a “processing” state. Blogger engineers are working to resolve this.
Update, 9:15PM: We have identified the root problem and resolved it. Video uploading now works as normal.