After having filed some bugs and spent a bit of time trying to figure out what’s going on, it appears that the issue with the metadata not carrying over from my DNG and CR2 files to the JPEG is not in any way RawTherapee’s fault. The problem is where Exiv2, the library used by Digikam, is expecting to look for this data. Of course, what I don’t understand about this is that Exiv2 is what wrote the data to begin with. Why write it to a location they were not going to be able to read from? Or maybe they only expect it to be there in DNG and CR2 files, but not JPEGs?