Scan QR code from published project fails

When I open ‘Scan QR code’ to install a published project, the scanner opens for a couple of seconds then CyberTracker stops. Any Ideas what may be wrong please?

Not sure, Graeme. Does it always fail? Are you able to use the camera normally, i.e. for taking photos?

If you scan the code using the phones scanner, it will offer to open with CyberTracker. That could be a backup way of getting this to work.