I wonder if there are any news about the "Set featured image" bug after updating WP from 3.4 to 3.5 ? There are plenty posts on google about that issue but no results.
1) Click "Set featured image" on post
2) Upload Image
3) Error message appears: "An error occurred in the upload. Please try again later."
The image gets uploaded to the media libary but doesn't get attached to the post.