Customizr Modern Theme: Related Post Image sizing

I just switched to the Modern style (which I’m really happy to see!) However, the only thing that seems off is how the Related Posts display at the end of your post. Previously, it used the feature images sized the same way as on a home page – which mine are sized to fit. However, now it looks like it is pulling a thumbnail, which cuts off some of the image.

Any thoughts on how to fix this in settings? If I adjust the feature image, then it will look odd on the home page.

Thank you!

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