RSS Ticker Marquee not scrolling

Recently changed to a new server and started fresh with the latest Xibo.

We have a windows computer running the Xibo Client elsewhere in the building which I connected to the new XiboCMS Server successfully and all appears to be working but one thing. The marquee effect for the RSS feed does not actually scroll the text anymore. It used to when the client was connected to the previous server which had Xibo CMS (3.xx) however. The only difference is we are using the new Xibo CMS version so something has changed somewhere along the lineā€¦

If you preview the layout the marquee scrolls as expected however on the actual Xibo Player when it plays the RSS feed it just shows on the screen without doing anything.

Any ideas?