I'm back on the roof again "fixing" nodes. I have this one string that for the life of me, I just don't get it. It's almost like I have a short somewhere. The nodes on the string worked fine last weekend. then it rained. Then today I fixed one node in line of 100 and its fine, but I have another string with 5 replaced nodes. I replace the node I think is faulty and it's not, I go one forward and it's not it, I go one backwards and it's not it. Anyone seen this before?