Hi,
I just had the same issue this week, my quick fix was to update php from 5.6 to 7.
Hope this help!
For example on this page :
http://intracable.ch/lyncee/types/product-data-sheet/
There is only one post and I have displayed the tags (DHM, I am a tag). In my search form I only want to have the tags that are displayed from my loop.
In the form, because the base functionnality retrieve all the tags for the Post Type and I need to have only the tags from a custom taxonomy.
Can you try with this code :
<?php echo do_shortcode(“[ULWPQSF id=1948]”); ?>
Don’t forget to change 1948 with your current search form id.