Event Viewer App - weblinks not showing

We've started to use the Event Viewer App in our band web page but are finding we can't add a web link to the venue in our gig listings. We are completing the information under the Event Details tab and adding a weblink in the section called 'About your event (optional). The weblink shows in the online form but when published does not show in the event listing. All the other information is included in the listing just not the weblink. Any advice in how we overcome this problem would be appreciated! www.thedylanband.co.uk