I realized about 30 minutes ago that I did make a backup SD card of my working image a year ago and have the image also saved on my PC hard drive. Put the old image back in and the problem is now gone, at least so far.
Now I'm hesitant to upgrade to the latest FLDIGI. This image is 4.1.08.
At least I back to a stable ad reliable transmit.
In Christ, Until He Come, Perhaps Today . . .