m working with darktable 3.0 .0 and windows 10. Darktable really is a great software. But out of a sudden I have a problem when exporting. Although I did not change any settings (at least I think so) the exported JPEGS have a format of 3 x 4 or 6 x 4 and a size between only 15 and 30 KB (not MB ). It doesnt help either to change export format from JPEG to TIFF or close and restart darktable. Now I dont have any idea whats the reason of this problem nor how I can fix it. What can I do?