Your set had that magenta tint from day 1. You just never noticed it and it won't go away. The problem is almost all OLEDs will have this tinting problem especially the 2019's. You can keep going back to Costco and see if you find one that's better but don't have the notion that you will find a set with zero tinting.After 450 hours with LG C9 55’ I noticed a magenta tint in between loading screens of Mario Kart 8. Its mostly on the left side of the TV.
I went through some of the videos on here and now I know it’s there it bothers me.
So, is it just a lottery to get one that doesn’t have uniformity issues in white screens? I am within return time with Costco and not sure I’m happy with that issue. Love the TV otherwise.
Any suggestions? I’ll try a post screens once it gets dark here.