Ticker not showing all items

Hi there, having finally got the system worked out I have been working on a layout design. In the Designer I have two Regions with Tickers in them. The tickers work perfectly in the Designer, but when I try to play them in the Xibo player, the player will show the first item of the Ticker, pause the 20seconds, then attempt to show the second item, but gets so far before it resets the ticker completely.
Each ticker is set for a duration of 20 seconds, with 1 item per page, and a transition of Paged Left.

The ticker is getting its information from a dataset that I have manually setup with upto four columns.

Could you please tell us which CMS version are you using?