Hey,
I solved the issue in one template by editing the code for the image.
In the example for the page template “Premium Package #2″ I changed following line
Former:
<div class=”thumbnail”>[thumb_800x600]</div>
</div>
to new:
<div class=”card mb-3 p-3 hide_empty [hide_empty:featured_image]”>[featured_image]</div>
</div>
Now it´s working. Maybe this helps.
Best regards
Irina