Some third-party plugins can force real-time MP4 playback on image planes by using custom FFmpeg builds . Exporting MP4 via Playblast
Use a tool like FFmpeg or Shutter Encoder to export your MP4 as a series of images. Maya.mp4
By default, Maya often only supports .avi (Windows) or .mov (Mac) for playblasts. How to Get an MP4: Some third-party plugins can force real-time MP4 playback
If your video won't load, it is likely a missing system-level codec rather than a Maya bug. JPEG or PNG).
Convert your video into an Image Sequence (e.g., JPEG or PNG).