Oh man, I had almost the same nightmare at a train station in another country. My ticket QR code got all pixelated after I zoomed in too much, and the scanner refused to pick it up. The line behind me was growing, and I was sweating bullets trying to fix it. Since then, I’ve kept qr code scanner bookmarked. It’s super handy because it works straight from the browser, no installs needed, and it helped me decode a backup screenshot once. Definitely a good safety net for travel moments like that!