Okay. I did a quickie sepia tone with the sliders on that image, and imported into Phtoshop. It came out identical again and no issues with the RAW editor wanting to redo it.
Okay. So it turns out it’s NOT doing it to most of the images. Just to certain images in that set. It feels like it might be images I’ve RAW edited in other programs are the issue.
I’m not sure what is really going on, but if you’ve edited a raw file with another raw editor then export it as .DNG, then it is not “raw” anymore and I would expect something not working in Rawtherapee. It would be of help if you can share a non-working sample of raw file so that someone is able to look into it.