Okay, I just checked the preset. The problem isnât anything you did itâs because the preset uses Auto Mask Size. It really needs to remain at Mask size 1. Auto changes it to 2 when the resolution is at 4K.
This the reason why this happens.
So, this is something that Iâll try to fix as soon as I get a chance.
This is also why my moire mitigation suggestion probably didnât work for you using this preset leading you to resort to disabling scanlines to resolve it.
When I fix the preset all of that should work as described as well.
You can go ahead and make the change for yourself in the meantime though. Just change the Mask Size from 0 to 1.
Iâm not sure if the Slot Mask Thickness being on 0 (Auto) might also lead to similar issues.
I might have originally left the 1080p_Optimized Mask Size at 0 as a holdover from when I used to use Mask 6 Size 2 in my 4K_Optimized Aperture Grill Preset and left it at 0 so that they couldâve been more scalable.
Ultimate Slot Mask was my first Slot Mask Preset so thatâs another reason why it might have remained in there.