Since LG has changed black behavior in the firmware, I would maybe revisit the shadow detail adjustment.I have found what may be the same issue while playing Vertigo on a 4k UHD disc. The final scene is very dark and I'm finding these lighter blocks dancing around the blacks. This is HDR10.
I'm hoping you can see it in the image below from the video I have captured as the still's compression doesn't make it look as noticeable as it is. I'm also seeing this in dark bands across the whole image which unfortunately I haven't been able to capture.
I'm wondering if this specific issue may have something to do with my recent calibration where I used Calman's Shadow Detail control. I wonder if I have pushed it too far.
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