RawTherapee 5.4 Black and White convert results in colour cast

[stefan.chirila]

Please refer to this thread for a possible solution

CIE Color gives uneven values when converting to BW

I found that when editing with CIE if I turn the image BW then the pixels do not retain a regular RGB value of (X,X,X) but that there is a cast, usually blue? Is this normal? How can I use the CIE colour features and still convert to a pure BW image? [ed--Screenshot%20at%202019-09-27%2004-22-41] ND7_0430.NEF (24.6 MB) | ND7_0430.NEF.pp3 (11.3 KB) Using RawTherapee-dev-5.7-115-gb86b7a4-20190925.AppImage Thanks in advance! Cheers