RawTherapee 5.13 Release Candidate 1

Hi all… I’ve just nocticed an issue with this as well; here are two images with minor red channel tweak in Colour appearance & lighting, On and then reset to linear (Off).

used a CC licenced play raw image from: High contrast sunset scene at a little lake

Using my basic start point pp3 (applied after setting raw to Neutral):
Basic Start v3 .pp3 (19.1 KB) . This (amungst other things) sets WB set to Temperature Correlation (as per Gamechanger).

I find that a minor adjustment to either R, G or B, gives this artifact in the clouds… see the two areas of the sky set to 100% (I’ve only shown the red tweak & artifacts here).

Using 5.13 rc1 via the installer.

Any thoughts?

Thanks