I recently downloaded wordpress 3.5.1 and installed it on my website.
This should be the website that is launched in the air.
On the demo site when i click on Add Media and want to change the image to thumbnail / medium / large / full screen it works.
Now in the version i launched in the air i can only select full screen and not thumbnail / medium or large.
I only changed my thumbnail at the options-media page for 150 x 150, large to 500 x 398.
Any help ?
I know it’s a bit late, but I’m having the same problem and looking for a solution. This other question seems to describe the same problem, and the solution is that maybe the needed image libraries (GD or ImageMagick) are not included by the server configuration. That was the case for me.
I hope this helps someone. ^^