I think those are quite typical "artifacts" of x265 encoding. I was just thinking that AQ can affect such things because it is shifting bits inside the frame. Lowering qg-size to 16 could also change things.
By the way, hdr-opt nullifies your settings regarding the chroma QP offsets so it won't help.
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And if the band you're in starts playing different tunes
I'll see you on the dark side of the Moon...
Last edited by Boulder; 22nd October 2019 at 12:41.
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