Fun with bugs: The truth is out there

[Matt_Maguire]

We’ve seen weird things like that before:

Is this a 3.2 Darktable bug?

Well It seems that the problem is with one of the color balance modules I use. It creates a vignette, darkening midtones, lights and shadows. It applies an elliptical mask and uses a parametric luminosity mask in order to preserve the extreme lights and shadows. If disabled the module, the photo is exported OK. If I disable the masks of these module, the export is correct too. The problem seems to be with the parametric mask, when this is enabled the export is not correct. If I deactivate …