I'm now having similar issues, going to try and resolve through Alex as it's not even 6 months old.
At first I thought the drive was just being a bit funny with some 4K discs so thought it's OK, it then refused to read a standard BR disc, reads DVDs but now refuses to read any BR discs, just resulting in a No Disc error after a bit of churning and lights flickering.
Going to rip it out this weekend and see what I can see.