@eflyguy’s point is that the machine’s accurate function doesn’t depend on a perfect focus from the camera. Mine is a bit out of focus too, when it isn’t directed to focus on a specific depth.
You might try using the “set focus” tool under the three-dot dropdown menu, set the brackets on the QR code, and see if that helps.
Not recognizing the QR code on proofgrade materials certainly wouldn’t prompt me to spend that kind of money. You can manually select the material from the search dialog box.
Do check if the camera is glued so that it doesn’t rotate like @ovm.steve suggested, we have seen that happen before.
I see this is your first post here, Welcome! Have you gone through the Camera Calibration?
Since release of the set focus tool, I don’t specify material at all. I haven’t hardly touched my calipers since, just set the focus and enter the operation parameters manually.