Mine has never really been centered, per say. I just work with what I have. I have been a GF owner since spring of 2019.
The blurry part MAY go away once you manually select the Proofgrade material you put in there, if the camera isn’t seeing it. You could also try putting the QR code in the top left corner to see if that picks it up when you close the lid again.
I scoot my Proofgrade material down the the door’s edge (butt right up against it) so I can get the most use out of the material at the top (it is safe as there is always a GF buffer never going to the edge-edge). I have a good appros 2" gap at the top of the tray (with honeycomb holes) being visible and wish the material could be aligned at the top of the tray, not by the door, mostly because all of the air swoops down towards the door to then be pulled to the left and over and out the hose. My door gets aaaalll that sticky residue on it and I have to clean it more often then I would like. Mine is currently running so I can’t actually measure my gap of tray visible.
Sometimes it can read the QR code of my material on the bed/tray. Sometimes I have to select it manually. I was hoping with the latest update they did with speeding things up, the camera centering area would have been straightened out as well.
I hope someone else reads your posts and gets us some answers.
Good luck with all the awesome things you are going to be creating and printing!!!