kepanodk

I found the cause of the problem. I have another plugin installed – “Easy Table of Contents”. When this is activated, my snippets are shown twice, otherwise the shorcode are shown as intended.

I tested with a basic shortcode to see if the shortcode were to blame:

function jdr1(){
	?>
<p>Test</p>
<?php
}

add_shortcode('test_SC', 'jdr1');