Here the update. It is related to using REMOTE next to the speaker and headphones. I have been using this for some time to eliminate another set of speakers. So I decided to hook up another set of speakers and plug in the back of the Flex 6300 and deselected REMOTE and low and behold I have audio. When I switch back to REMOTE to make audio come out of PC speakers its not there.
Now when I restart the SmartSDR 2.0.17 and select remote it is there until it goes away.
So my work around is to use speakers hooked to Flex 6300