I have (10) 25x25 matrix panels covering windows. 4 inputs per channel. When they are on, most of the panels have a string or partial string that are off by 1 color. Example, inputs 1-3 are red and input 4 is green. Some panels have 1 input that isn't on. When messing with the connection, it flickers blue or comes on as blue but goes completely out when testing. I've switched out cables and get same results