GTA 6 nearly refused classification in South Korea after board reviewed leaked nude footage
The Game Content Rating Board tied on an initial vote after seeing out-of-context male nudity in unofficial clips, then approved an Adults Only rating once members played the official build.

Grand Theft Auto VI came close to being refused an age rating in South Korea, which would have effectively blocked the game from sale. Three separate reviews by the Game Content Rating Board centered on what committee members called excessive out-of-context genital nudity and frequent male genital exposure.
The first vote on September 10 ended in a three-to-three tie. Three members voted to refuse classification while the other three supported an Adults Only 19+ rating. A second vote on October 2 remained inconclusive because the committee lacked a fully playable version of the game.
By October 16 a third vote passed the Adults Only rating eight to one. The shift appeared to hinge on committee members finally testing an official build. One member noted that Rockstar Games had intentionally covered genital exposure in explicitly sexual scenes, a contrast to what the board had seen earlier.
Those earlier concerns were reportedly triggered by leaked overseas footage. The clips, widely attributed to the individual known as Cyberleek, showed the male protagonist Jason fully exposed and the female protagonist Lucia nude while skydiving. The nudity in those videos was apparently enabled through developer tools rather than normal gameplay.
The rating outcome suggests that Jason and Lucia cannot appear nude during standard play. The board moved forward only after confirming that the leaked scenes did not reflect the finished product.
Source: Kotaku