KARD hasn't hosted a 'V' live broadcast in quite a while so fans were very eager to open the app when they discovered that KARD was hosting a new 'V' live broadcast. However, when fans tuned in, they were greeted by the members of April instead of KARD. Likewise, April fans were greeted by KARD on April's 'V' channel.
Towards the end of each broadcast, both groups met up and the two broadcasts were switched back to their rightful owners. Gotta love that next level trolling!