Just wanted you to know that when I switched and turned the carousel off, the featured image shows up just fine. I do believe that the Problem lies with the carousel feature.
After I wrote the message I thought I should include a picture of how it looks normally on the site on a PC.
Solution for this topic
Nope, you’re right somehow it has resolved itself. The only thing that I have done is added more content. Interesting. Thank you for checking in to it for me.