Thank you for contacting us and I'd be happy to assist.
I've noticed that you've added the "Image Slider" block in the content of the individual post "Tetra Cardinal".
( {yourwebsite.com}/wp-admin/post.php?post=25514&action=edit )
But, the content template "Content template for Posts" is assigned to "Posts", which means that what you'll add to this template will be used to show the content on all single "Post" pages.
( {yourwebsite.com}/wp-admin/post.php?post=25616&action=edit )
The use of a content template saves you from designing the content in individual posts and you can design the content layout for all "Posts" from a single content template "Content template for Posts".
You can remove the "Image Slider" block from the individual post's content and instead add it inside the content template "Content template for Posts".