I had this issue fixed on my mid-2012 15&quot; rMBP. It&#x27;s known issue with some of the early LG panels on that model. The technician at the Apple store ran some standard image persistence diagnostic script to replicate the issue.<p>They replaced the display for free outside of AppleCare. I didn&#x27;t have to argue with them at all, so I suspect that this is their standard response. YMMV if you have a newer model.