I have a mac mini running OS 10.15.6. FLDigi 4.1.14, & FLRig 1.3.50. Both programs run and appear to work. FLRig works like a charm but while FLDigi runs, it is stone deaf. The correct silicon lab drivers are installed on the mac. MLDX, JS8 Call and WSJT-X all work like a charm. Audio input source (USB Codec) is the same on all software packages. What have I missed?