multi-valued filefield: wrong status in media_mover_files table, when user uploads multiple files

I have a node-type that contains a multi-valued filefield.
I have a mediamover-config that harvests the files from this field and uploads them to youtube.

If the user creates a node with a single file, then the 'status' for this file, in the media_mover_files table, is 8 (MMA_FILE_STATUS_COMPLETE_COMPLETE).

However, if the user uploads multiple files, then the 'status' for these files is 7 (MMA_FILE_STATUS_IN_COMPLETE).

That is, for some reason I do not understand, it seems that some final step in the processing of these files is not completed.

As a result, media_mover_api_node_files_fetch($nid) fails to fetch these files, because by default it looks for files with status = 8.

As a temporary work-around, I replaced:
$media_mover = media_mover_api_node_files_fetch($nid);
with

$media_mover = media_mover_api_node_files_fetch($nid);
if (!$media_mover){
  $media_mover = media_mover_api_node_files_fetch($nid, MMA_FILE_STATUS_IN_COMPLETE);  
}