@Don Merz 070317 posted:So far I have soldered just shy of 100 connections to the layout (a drop in the bucket--don't remind me!) and just TWO of them won't take solder. Bizarre. One of the cartoon strips--was it Mr. Magoo?--used to have a character that walked around while a rain cloud stayed over him pouring down rain wherever he went. That is how this problem makes me feel!
That's truly odd, and obviously something about that "bad" rail is different.