Ahh, thank you for all of your help.
I had a line in my single.php <?php get_template_part( 'content', get_post_format() ); ?> which I then changed to <?php get_template_part( 'content-blog', get_post_format() ); ?> and now I am using the intended template.
I am now 1 step closer to become a WordPress guru ;-D
@alchymyth, So the template pages which is used for display blogs is called from within the theme code? I’ll search my files for anything with content.php and see what files come up in the results.
@dfunkydog I will also look into that plugin. While in this instance I would want all posts to use the same template, it may come in handy being able to choose different post templates on the fly.
I have tried adding that to the template file “content-blog.php” but I only get the option to use that template on my pages and not for displaying my posts.