Ok so we do extract the framerate from the first frame in FExrImgMediaReader::GetInfo so that could explain the difference. So only the AE one specifies a framerate of 30fps, whereas the blender sequence isn’t defined and would fall back to the IMG media plugin setting (unless it’s overridden in the image media source file). You could could lobby (or fix) Blender to also output framerate metadata? On our side, the fact that framerate settings comes from either overrides, metadata or plugin setting (in order) seems correct, but probably should be documented and/or displayed to the user.