Colibri WP Problem with Read More Image

I need assistance with a problem that exist with using a slider on a blog post, I have issues with the result of clicking on the ‘Read More’ button within any one of the blog post in the slider and the result is the full image within the blog does not appear only the top half or middle portion of the image appears.

In the slider you get the full view, that appears okay with the full image, but when the Read More button is clicked underneath an image it is stretched wide horizontally (width) by is cut off with its height.

I tried going to the Post Thumbnail settings page and I did adjust the height from 300 to 587 and it looked fine, but when I went to see the changes after publishing, the same shortened height problem still appeared again.

I am using the Colibri WP Skyline theme.

Any suggestions on how to correct the height issue?

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