I know what you're talking about and it's because the eyeball texture was changed to look more realistic and veiny. There's a pinkness around it to replicate flesh, that might be what you've seen. The old texture was just greyish and flat, no veins or pink at all.
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Each time I open the Endwalker benchmark to get some screenshots, I feel so sad. I'm always thinking "Oh so that's where you've been." when I load my creation data.
It would be nice to hear something from the development team about all of the things discussed thus far.
