I have a similar issue, I thought it was me, I have been monitoring JeffCo south 8125 for YEARS. My OP25 setup would tskblk roll but no freq or audio. I got a new laptop never got OP25 setup and switched to sdrtrunk with the same outcome, I get data and events with ZERO calls. I did switch to the MOSWIN site local just to be sure my sdrtrunk setup was functioning and it is working great. For me I was monitoring South site 104. Something has changed...