Turns out that much of this is due to the default HLR module which is not compatible with the modern WB settings and this is now magnified a bit by the new filmic v6 which does not desaturate as much… I would go so far as to say if you use filmic v6 and modern WB then you should not use any of the first 3 HLR modes… Laplachian can be added but generally the new modes recently added or the HLR in filmic will avoid these artifacts esp I think the bluish ones…
On or about the 26th min AP explains that the HLR modes esp the default one are not compatible with modern WB using CC… 2nd video here
and demonstrated in my follow-up and other parts of the thread…