I've tried automatically getting metadata from K2 items. There are the titles, the descriptions etc., except the images. Neither the Facebook and the Twitter images are shown (like you can see the attachment).
I found information about this in the TAGZ documentation: "Note: if No Image is defined in the Article, TAGZ is not able to detect the proper image."
All K2 items have an image, so what is the problem? Can someone please help about this?