As promised, I will share what happened in my case:
- First, I refined the procedure to reproduce the issue - read articles with white background in the browser for 30m - 1.5h and then check for flickering on this page: http://www.lagom.nl/lcd-test/inversion.php#invpattern
(Don't run the tests on this page, just check the background on the landing site)
- Second, I left my macbook in the local Apple repair center and after they managed to reproduce the issue, they replaced the display.
- Unfortunatelly, the first replacement came deffective (not sure if it was the same issue);
- When I went to get it, the display wasn't properly attached (I noticed that the display wasn't exactly centered on the main piece, you should check for this, yourself), so I asked them whether this is OK or not - they reattached it properly within 5 min.
- After I started testing at home to see if the issue will show up again, I found out that the keyboard backlight wasn't working - they messed it up by misstake while replacing the display. So, check the keyboard backlight.
- The next day I went to the store again and they fixed the issue right away.
That's about it.
Regards,
Nikolay Tsenkov