I'm using darktable since over three years. Since a few months I notice that darktable does not always save the Exif data in the exported image (since version 3.4???). The Exif export is always activated. Today was such a case again: In light table and darkroom the Exif data are displayed. When exporting via the light table: The original image with Ctrl-e is saved without Exif, the edited duplicate also without. When clicking the export button, the Exif data is written in the original version, but not in the duplicated. This process is not fixed, just a concrete example. Strange. Probably it is due to my handling, I would just like to know where my error could be.
Current darktable version 18.104.22.168. Windows10: 21H1.
I would be very grateful for a hint.