Fans of "Stranger Things" are buzzing about a logo blunder in Season 5 that has sparked widespread attention. In Episode 7, during a tense scene where Holly Wheeler is trapped in Vecna’s lair, her sweater reveals an Under Armour logo. This presents a significant anachronism, as Under Armour was not founded until 1996, well after the show's 1980s setting. The oversight quickly went viral, highlighting the show's typical attention to detail and cultural accuracy. Netflix responded swiftly, editing the mistake out and replacing the episode shortly after it was noticed. The incident has drawn comparisons to the infamous Starbucks cup mishap in "Game of Thrones," emphasizing how even minor errors can disrupt viewers' immersion. Fans had high expectations for authenticity, especially given the Duffer Brothers' efforts to ensure period accuracy, such as requiring the male cast to wear tighty whities instead of modern boxers. Some comments on social media reflect the sentiment that such mistakes undermine the show’s credibility. As nostalgia-driven productions gain traction, audiences are increasingly vigilant about maintaining the integrity of the settings they love.