using liferea 1.6.3 but this happens since ages.
when you first look at an article, lifearea download and draw on screen the image of the article.
And every first time, the image is drawn to its half, then disapear and is redrawn entirely this time.
This is especially visible with big header image in the post.
I even wonder if it is not downloaded 2 times ??
The bug is visually annoying, and it still should be proved the image is not downloaded twice