I am currently running RawTherapee RawTherapee_dev_5.8-2847-g53bb6e41b_W64_Skylake_210422.
The DNGs in question have been converted from ARW files (A7RIII) with Adobe RAW Converter, 18.104.22.1680.
The problem is that my adjustments - in some cases, and I can’t find out when - and when not - have no effect on the image.
I received a pp3 file from a friend, and when loaded with the same DNG file as it was created for (in this case on a Mac and in another version of RT) the only effect in my Win10 system was a darkening of the image.
Then to exclude the possible incompatibility between two versions of RT and the two OSs - I loaded the image from scratch (neutral) and made the exact same adjustments in my system. Same result - a darkening of the image - with no traces of the specific adjustments.
The same DNG file responds normally in Adobe Camera Raw and Photoshop and different plug-ins.
PS: Aren’t we supposed to be able to exchange pp3 files across versions and platforms?