Good idea. I’ll check it out.
I just tried exporting a photo from DT 2.6.0 on my work computer (Windows 7) and it worked fine. So that means the problem is with my home computer and likely something to do with Windows 10.
Oddly when I started having this issue I downloaded RawTherapee and tried it to see if I would get the same de-saturated results and RawTherapee worked fine. I also tried Polarr online editing and that also worked fine.
I’ll investigate the Windows 10 issue tonight. Thanks for the idea!