Ran into something strange putting together a Muff’n. It seems the 9V pads on the PCB are not connected. I pulled out an extra board I had and that board the trace is there on PCB for 9V. So, not sure if this was a “one off” or what but thought I would mention it in case anyone else runs into issues. I did a quick search of the forum and did not find any other posts. Fix was easy enough to just swap the 9v wire over to the other pad.
Pictures of the two different boards…sorry for the picture quality.