Title: Problem format thumbnail_excerpt
Last modified: November 24, 2019

---

# Problem format thumbnail_excerpt

 *  [eliasnp](https://wordpress.org/support/users/eliasnp/)
 * (@eliasnp)
 * [6 years, 6 months ago](https://wordpress.org/support/topic/problem-format-thumbnail_excerpt/)
 * Hi,
 * I am using the thumbnail_excerpt format explained here: [https://keesiemeijer.wordpress.com/related-posts-by-taxonomy/templates/](https://keesiemeijer.wordpress.com/related-posts-by-taxonomy/templates/)
   
   Everything works as it should, except one thing: when using the shortcode, “don’t
   read” the image size provided (for example, using [related_posts_by_tax terms
   =”3″ posts_per_page=”2″ order=”RAND” title=”” format=”thumbnail_excerpt” image_size
   =”medium”], does not show images in medium size but in thumbnail.
 * Any idea how to fix it?
 * Thanks greetings.

Viewing 1 replies (of 1 total)

 *  Plugin Author [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/)
 * (@keesiemeijer)
 * [6 years, 6 months ago](https://wordpress.org/support/topic/problem-format-thumbnail_excerpt/#post-12180688)
 * Hi eliasnp
 * Check if it works by changing this
 *     ```
       $size = isset( $rpbt_args['size'] ) ? $size : 'thumbnail';
       ```
   
 * to this
 *     ```
       $size = isset( $rpbt_args['image_size'] ) ? $rpbt_args['image_size'] : 'thumbnail';
       ```
   
 * I think the documentation is wrong.

Viewing 1 replies (of 1 total)

The topic ‘Problem format thumbnail_excerpt’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/)
 * Last activity: [6 years, 6 months ago](https://wordpress.org/support/topic/problem-format-thumbnail_excerpt/#post-12180688)
 * Status: not resolved