Capture Manager in Live Link Hub uses the Windows Media Foundation (WMF) framework to process video data. Unfortunately, the Technoprops HMC MOV file can not be decoded by WMF, hence the error message.
When working with data that can not be decoded by WMF, we recommend configuring a third party decoder (FFMPEG) for data conversion during ingest. The instructions for this are in our documentation, Live Link Hub Settings.
In previous versions of MetaHuman Animator the conversion was already being done externally using FFMPEG and the stereo camera calibration tools.