You mean the right-hand button on the faceplate? Interesting. Never heard this one before.

One thing to check:

Is it only with the faceplate button, or does it also happen when you press the Next Track button on the remote control, too?

You've tried it with different shuffles? In other words, it's not a specific faulty song that happens to be the next song in the current playlist and you haven't gotten past that song yet because it keeps crashing?