Metro Nashville P25?

Long time lurker, first time posting! Anyone know what is up with Nashville's P25 system? I was scanning just fine on Thurs. morning, get in the car after work, not a peep on the 436. Can pick up Goodlettsville and Mt. Juliet just fine, even pick up the voice channels on custom search, but nothing when I scan the system. I'm assuming they've changed the control channel, but I've put in (so far) 19 channels into the Davidson County Simulcast with no luck. Help!



Craig