Korean music channel Mnet has once again come under fire for alleged manipulative editing, this time over “Street World Fighter: Directors’ War.” The latest controversy could further erode viewers’ trust in the channel, which already stands on shaky grounds after past allegations of voting rigging involving its K-pop audition programs. The repeated nature of the controversy makes it harder to dismiss such cases as isolated incidents. The controversy centers on “Street World Fighter: Directors’ War,” a dance competition program Mnet announced late last month. The channel described the series as a large-scale project built on the legacy of the globally popular “Street Woman Fighter” franchise, focusing on performance directors who choreograph, design and stage performances for top-tier dancers around the world. The controversy emerged after Mnet released a teaser for the show, which is scheduled to air in August. Kiira Harper, who appeared in the teaser and was shown listing various performances she had apparently worked on, later wrote on social media that she had not