I did manage to find the ground, this one is half way down the drivers side of the house, screwed into the frame and diamond plate. Set screw was corroded, put some heat on it, pulled it apart and put contact grease on everything, put it back together and away the lights went. Ice Castle should really have a sealed box around that to keep it out of the elements. Funny (in a sense) how something so small has such a large effect.

What was the solution, oddly enough I have the same house “now” and it’s having the same issue…..?