I have had the same symptoms, and must manually right-click and select “Show Controls” from video’s context menu. My debugging from Firefox inspect element on the video led me to models/flowplayer-frontend.php to add this conditional, after $autoplay == true:

if( $controlbar = ‘show’ ) }
$this-ret .- ‘ controls=”true”‘;
}

All is well now. Is this a legitimate patch to include?