Play It conversation not working correctly

When trying to use the Play It section, the audio skips and plays several sections of the conversation simultaneously, and then skips later sections, not allowing me to finish and giving me a poor score.

This is using Google Chrome on OS X. I have restarted the browser, but no joy.

Hi Archiebuttle, 

Thank you very much for contacting us. Thank you for your patience and our apologies for the inconvenience caused. The glitch that was reported yesterday is now fixed and you should be able to take the course as usual again. 

I hope this helps. If you have further comments or questions, please let us know.