Featured Image shows wrong

Hello,

I’m having an issue with a featured image on a post.

I have two articles with a featured image of 1500×2134. the images appear adequately, as you will see on the links below, however on a third article the featured image, of the same size as the others, doesn’t appear like the others at all, whether in the article or the blog page.

I’d like to keep the same image formats and i would like so solve this issue and have the 3rd image appear like the other two. Can you please hep?

good images

https://universalminds.co.uk/a-brief-history-of-the-samurai-the-way-of-japans-elite-warriors-by-johnathan-clements/

https://universalminds.co.uk/the-lone-samurai-the-life-of-miyamoto-musashi/

problematic image

https://universalminds.co.uk/letters-from-a-stoic-by-seneca/

Thank you

The page I need help with: [log in to see the link]