Started using related posts plugin for first time today and I love it, only issue is on some of my posts it's completely altering the page layout
example of post that is perfect - http://www.yorkshirepudd.co.uk/mars-bar-yorkshire-pudding/
example of post that layout is changed - http://www.yorkshirepudd.co.uk/national-yorkshire-pudding-week/
Any ideas why this is happening??