Deactivate AIOSEO plugin
I was annoyed that one of my post carousels on the homepage wasn't at the right aspect ratio. Reviewing recent changes, I found that the SEO plugin I installed was interfering with my layout and causing featured images to fit in their original ratio instead of the one I was implementing. So, I will be activating and deactivating this plugin when I need it or until I find one that won't interfere with my layout.