Oddbean new post about login | logout That means there's nothing wrong with scanning and decoding the QR, but with the decoded data contained in the QR, or with the application or process that's interpreting and applying the information contained within the QR. From the OP, I was under the impression that he's unable to successfully scan and decode the QR, which is why I asked the question that I asked.
Your impression was correct, the scanner would not indicate it was successful at scanning
It's probably an issue with the phone's camera, but it could also be a problem with the app you're using to scan the QR. First, are you able to scan other QRs? Or is the problem just with a particular QR? Second, I would try a different QR scanner. If the problem is with the app you're using, a different app may work properly. Those are the things I'd do to isolate the problem. You really need to determine where, exactly, the problem is before you can devise a solution.