It definitely shouldn’t.
When I tried it using chrome inspect, this is the result:
https://www.screencast.com/t/818buiTr
Can you make sure to replace this block:
.wpsp-grid article:not(:first-child) .wp-show-posts-entry-summary, .wpsp-grid article:not(:first-child) .wp-show-posts-entry-meta-below-post, .wpsp-grid article:not(:first-child) .wpsp-read-more {
display: none;
}
With this?
.wpsp-grid article .wp-show-posts-entry-summary, .wpsp-grid article .wp-show-posts-entry-meta-below-post, .wpsp-grid article .wpsp-read-more {
display: none;
}