No tampering key is included in the video export. Either the tampering key was removed, or the video export was created using a stand-alone third-party application based on the 2020 R2 or older. If the tampering key is missing, there is no way of verifying the authenticity of the video project file.
To resolve the issue, do one or more of the following:
- Request a new video export and make sure the tampering key is included
- Re-export the video data using a third-party application which is based on MIP SDK 2020 R3 or later