Simple Visual Edit campaign not being implemented

Hi, 

I have created a 'Visual Edit' campaign - making minor changes to the titles of two models on the homepage. 

The changes are minimal and highlighted in screenshot below (added 'M' and 'XL' to the titles)

However the preview does not work - message shown: 'page conditions were not met'

Advice on what to change and how to fix this issue?

Many Thanks