XP30 : Rhythm Mode error when I've saved few Performance...

I'm using XP30. When I've saved my own edit Performance for about 2 or 3 performances,
and switch to Rhythm Mode, I can't play anything?? but Patch and Performance is still ok.
I've to "Factory Reset" so I can use Rhythm again.
Anybody found the same problem?

Have you done anything to midi channel 10 on your edited performances? If you've somehow disabled or muted track 10 or midi channel 10, that will affect how rhythm mode works as well.

as you said, the rhythm will play only note that I set Key Range in part 10.
Thanks a lot ( :