Greenville-Pitt County

I was just wondering if anyone in the Greenville Pitt County area was able to monitor Greenville PD,Pitt Co. Sheriff and NCSHP the last 2-3 days.I monitor with a PSR500 and turned it off Wed.night and everything was fine,turned it on the next day could not pick up anything but Greenville FD.i was told they are rebanding in this area would this cause the problem or is it my scanner