Featured Image not showing on blog page

Since downloading the latest theme yesterday, I’ve noticed a discrepancy on the blog page layout. The featured image doesn’t show in the ‘summary’ of the latest blog although it looks fine on the post page.

There is however, a secondary ‘title’ box in place of the featured image and I’m not sure how to correct this. I use U-themes and it’s been working extremely well until yesterday ?? Any ideas?