There must have been a bug for a limited time so earlier and later imports were not affected. All other DNGs created in Lightroom by converting RAFs are fine. I also know that I processed some of these DNGs in Lightroom Classic when I still had a subscription and saw no problem then. Clearly there is something in the files that is ignored by some raw processors but not others. Strangely Snapseed on my Android phone and on my iPad does not exhibit the problem, nor does Lightroom on my iPad (don't need paid Adobe CC account to use it there). Those all on Windows but I checked dt and RawTherapee on my Linux laptop as well both purple. They are purple when opened in RawTherapee and a JPEG converted from DNG using Faststone Image Viewer is also purple. Jaw-dt I'm running dt 3.2.1 on Windows 10 but this is not a dt problem, the DNG files are corrupted in some way. I'm hoping that someone can suggest a colour correction recipe that can help me rescue these files, particularly the ones where JPEGs are black and white, so I can have colour versions too. The screenshot from Darktable shows thumbnails of some of these files along with JPEG versions (I had been shooting RAW+JPEG), some black and white and some colour. All was fine as long as I used Lightroom but I have now discovered that all the DNG files created from an outing in 2018 were corrupted by a bug that resulted in them having a purple tint. As a Lightroom user I chose a setting to automatically convert imported RAW files to Adobe's DNG format AND foolishly didn't choose the option to preserve the original RAW within the DNG files as this would have resulted in much larger files. I use a FujiFilm X-E1 camera that produces RAF raw files. I would appreciate any advice you can give. I have only recently started using Darktable so not able to figure this out myself, but I'm sure there must be a way to apply some correction to remove a purple tint from a number of DNG image files.
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