[Theme: Orion Press] Featured Image Issue

Everytime I upload an image as the “Featured Image”, it is not sizing correctly to look like the rest of the thumbnails on the home page. It used to do it automatically but for some reason it isn’t cropping correctly. Consequently, when I set the post to appear in the slider, the featured image isn’t taking up the full width even though it is rather large in pixel size (1200 x 1200). It used to work but for some reason it is not working anymore. Any ideas?

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