@bobm I’ve looked at the history of the installer configuration and it doesn’t show that it ever included gdbus. We’ll have to look at the past installer .exes to confirm, but what version of RawTherapee did you copy gdbus from and are you sure that version was installed through via an installer? Or maybe you got gdbus from here?
@schorschbey Could you file a bug report on GitHub as described in RawPedia so that your comment doesn’t get lost and forgotten here? Regarding the ARW metadata, it would be extremely surprising if that was the case because RawTherapee doesn’t know how to write any type of raw file (in fact, RawTherapee only knows how to write a few image file types). Check your preferences and see if RawTherapee is reading/writing processing profiles in the cache and if XMP metadata synchronization is enabled.