I am uploading a .mp4 video file to SharePoint online asset library.The file is around 4 MB.

Everytime I upload the video file , I get the below error:

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Even though it displays error, the file is getting uploaded successfully but its getting uploaded into a folder structure with contents like below:( I'm sure, I'm uploading only 1 .mp4 file)

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Not sure why this is happening. This happens for any .mp4 file I upload on the library. I'm facing this issue in other sites as well. So want to check if this a known issue.

  • I have had the same exact problem. I have read some other posts and found that this behavior typically occurs only in classic SharePoint.
    – Kitten
    Jul 25, 2020 at 17:25

1 Answer 1


I couldn't reproduce your issue per my test in SharePoint online modern view.

Refer to this post, it seems that the encoded using an unsupported container.

Please ensure the video has the supported video codecs as follows:

  • H.264 (Baseline, Main, and High Profiles)
  • MPEG-1 (Including MPEG-PS)
  • MPEG-2 (Simple and Main Profile)
  • MPEG-4 v2 (Simple Visual Profile and Advanced Simple Profile)
  • VC-1 (Simple, Main, and Advanced Profiles)
  • Windows Media Video (Simple, Main, and Advanced Profiles)*
  • Grass Valley HQ/HQX



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