The K. News ticker has a problem

Kirupa has a new news ticker!
The entire thing worked fine until I tried adding extra lines to the xml file!

No extra lines appear!
Do I need to read something I didn’t?
Is it explicit somewhere in the tutorial?
Or is the ticker all ticked out?

I tried adding a couple of other lines like “I like spam” or “I wove bunny wabbits” or “rararararararara”… All with according, and diferent url, but not one shows up!