Facebook sharer showing (almost) always the wrong author

Question

I can't understand why Facebook sharer keeps showing the wrong article's author when sharing articles of my website. (Of course I always use Facebook Debugger before sharing).

Take this article as an example: although it is clearly written by Francesca Aloisio, it keeps showing (when shared) "by Virginia Vigliar".

Facebook Debugger reports:

<meta property="article:publisher" content="https://www.facebook.com/wordsinthebucket" />
<meta property="article:author" content="https://www.facebook.com/francesca.aloisio.397" />

I just can't figure out why.

N.B. I use Wordpress SEO by Yoast.

Answer 1

Why are you having the og values defined twice?

Have a look at below (line 23 to line 47):

<!--Facebook Open Graph-->
<!--FB page title-->
<meta property="og:title" content="Indonesia Makes a Sharp U-turn on Virginity Tests" />
<!--FB description-->
<meta property="og:description" content="Most students in the world may think that in order to get their high school diploma they would have to meet certain requirements: good grades, good attitude towards school, good relationship with teac..."/>
<!--FB url-->
<meta property="og:url" content="http://wordsinthebucket.com/u-turn-indonesia-virginity-tests"/>
<!--FB image-->
<meta property="og:image" content="http://wordsinthebucket.com/wp-content/uploads/2015/02/indonesia-exam.jpg" />
<!--FB type-->
<meta property="og:type" content="article"/>
<!--FB site name-->
<meta property="og:site_name" content="Words in the Bucket"/>

<!-- This site is optimized with the Yoast SEO plugin v2.3.5 - https://yoast.com/wordpress/plugins/seo/ -->
<title>Indonesia Makes a Sharp U-turn on Virginity Tests</title>
<meta name="description" content="Indonesian officials were forced to take a step back on their proposal of introducing virginity tests for high schoolgirls."/>
<link rel="canonical" href="http://wordsinthebucket.com/u-turn-indonesia-virginity-tests" />
<link rel="publisher" href="https://plus.google.com/+WiBTeam/about"/>
<meta property="og:locale" content="en_US" />
<meta property="og:type" content="article" />
<meta property="og:title" content="Indonesia Makes a Sharp U-turn on Virginity Tests" />
<meta property="og:description" content="Indonesian officials were forced to take a step back on their proposal of introducing virginity tests for high schoolgirls." />
<meta property="og:url" content="http://wordsinthebucket.com/u-turn-indonesia-virginity-tests" />
<meta property="og:site_name" content="Words in the Bucket" /> 

Remove either one of them, because this is causing the FB Debugger to show that: