Images Rendered by Movie Render Queue don't match the looking in viewport if After Tonemapping PP was applied

UE - Virtual Production - Rendering - Color - Aug 21, 2021

This might be a bug or by design which needs to be handle by certain pipeline (OCIO?), but it's quite confuse that such big difference compare the images rendered by MRQ to those seen in Editor view ...

Images Rendered out by Movie Render Queue has much more visible Banding issue in gradient

UE - Virtual Production - Rendering - Color - Aug 21, 2021

I did some experiment locally. At very first I thought it's the image compression issue, since the issue is also obvious while rendered out images as JPG and PNG, there's no image compression qualit ...