Hi there, I'm having trouble with my blog displaying images I post in their preview on the main blog. If you head to my site http://www.thatartistcalledslam.com you can see one post 'politial graffiti' has a preview because I uploaded it from my phone as an image post. The one after, 'virgin media designs' has a preview too. The Virgin one and the next 2 I uploaded from my laptop either by directly inserting them in to a post from from the gallery, or just clicking insert picture in a new post and uploading it from my computer, and these are the ones that haven't got previews.
Am I doing something wrong when I'm uploading picture in to a post? Could it be to do with the theme?
The blog I need help with is thatartistcalledslam.com.