There is a serious bug in image importing. If image file exists on the disk, the importer doesnt download the image (correct) but it doesnt check the article if the image is linked to feature picture, it skips it. So at the end we have 10.000 articles and 10.000 pictures but not displayed on the public site. Plugin should check and update the feature image on the post even if the image is already on the disk.
It is just killed my day :(