JJ,
I downloaded the img from your Google drive site, burned a MicroS,D and brought it up. I was on the air. Since this is my holiday radio and also my holiday laptop, I added Libreoffice and Dia. Now the sBitx app won't start. I suspect it was the apt update that I did before installing. The specific sequence was
Dia I installed from the Add Software GUI in the Pi menu list.
I can burn the SD anew to back it down. Before I do, is there anything about this addition that you think caused it?