Hi Lance,

I had/have a similar problem with decodes. Look at the attached screen shot to see if yours looks like mine. When my waterfall looks like the signals at the top, I get no decodes. When my waterfall looks like the signals at the bottom, I get good decodes.

I don't have a fix, but I do have a workaround. I have no idea why this works, but it does. If I go to Control Panel - Sound - Recording  and single click on the Microphone for the audio device I use for WSJT-X (USB Audio Codec in my case), then my traces on the waterfall become "focused" and I get good decodes. I don't have to change anything in the Audio Properties. Just having the window open fixes my problem. The screenshot shows my waterfall without the sound window open and then with the sound window open.

I am using Windows 10 Home with updates turned ON and I am using the current version of WSJT-X. I do not use JTAlert. In my case, audio from my Icom IC-7300 goes into my laptop using the USB cable.

Good Luck.

Steve KS3K