A sudden, unexpected wave of Formula 1 drivers ignoring blue flags in the Hungarian Grand Prix was caused by a system failure.<br>Flag signalling has evolved along with technology with F1. Previously, it was just physical flags being waved trackside, but more visible light panels were subsequently added, and drivers now see blue flags pertaining to them on their steering wheel ...<a class='more' href='https://www.autosport.com/f1/news/how-blue-flag-malfunction-caused-chaos-in-f1-hungarian-gp/10842154/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=uk'>Keep reading</a>