Hi Olga
Thank you for getting back to me. I think I found the problem. The file content-widget-product.php in the Xstore theme has the code:
<img class="attachment-shop_thumbnail size-shop_thumbnail wp-post-image" src="<?php the_post_thumbnail_url( $product->get_id() )?>">
I’ve amended this to the following in a child theme which has temporarily resolved the issue:
<img class="attachment-shop_thumbnail size-shop_thumbnail wp-post-image" src="<?php the_post_thumbnail_url( 'shop_thumbnail' )?>">
Can you think of a better way to do this without the need for a child theme?
Is there a possibility this, or similar, update could be included in the next update for the Xstore theme?
Luke