Im having issues with my Leica Q2 DNG files in Lightroom Classic (LRC 10.4 with ACR 13.4). on Mac OSX 11.5.2 This does not happen with other RAW converters. I saw similar issue with Leica SL2 DNG files but not other cameras I tried
File type: imported DNG raw file from Leica Q2. Issue happens mainly with files at 2500 ISO and over. with large shadow space
Behavior: - when moving the shadow recovery slider past 50, it starts adding a lot of bright noise in the deep shadows. you can even see the image blink while sliding the cursor - if using curve sliders instead, the issue doesnt happen and the shadows can be recovered with minimum noise - if using the LR engine 1 or 2 the issue doesnt happen - not sure if this is normal but if I try to use the engine 3 or 4 it reverts automatically to 5 when i move the slider
- same issue with Photoshop and Lightroom Cloud. So I assume its a problem with ACR?
tried changing GPU cfg, NR settings etc.. doesnt matter
here are 2 crops of the DNG file. the one with massive noise is from LR after recovering shadows. the clean one is from another RAW converter after recovering the shadows