I also stopped looking into it as un-stickying the posts was a good solution for me.
Oh wow, you’re a life saver. A content editor set a post to sticky on my site too!
I didn’t even think to check that aspect.
Thank you very much ZweiGrafiker
@zweigrafiker What versions are you using?
I am on 1.1.1 of WPTiles and 4.5.2 WordPress.
I am seeing the problem on live server and local machine.
Also with my custom theme and twentyfourteen.
I have disabled all other plugins which didn’t help.