Pink cast on Leica Q2 Monochrom raw images

RawTherapee 5.12 on Linux Mint 22.3. Every DNG raw image from my Q2 Monochrom has a pronounced pink cast when opened in RawTherapee (see screenshot). I can easily fix the problem by desaturating, but it’s annoying to have to do that with every image.

The problem is definitely with RT, as Darktable can open the same images as B&W without any cast, but I can’t use Darktable as it doesn’t correct the distortion in the raws (which RT does), so straight lines are curved and there’s pronounced vignetting in each corner of the frame.

Did you mean to attach an example raw? And remember to declare it as creative commons license if you want people to post modified images/sidecars you can examine.

Here’s one of the raw images. It’s ~90Mb in size.
L1000357.DNG (86.4 MB)
This image by NickJP can be reused under the CC license.

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I would turn off White Balance for those photos. Darktable does this automatically, when it detects monochrome photos.

And btw: Darktable can use the embedded lens correction profile.