I use 6 ADJ Hex 18 RGBAWU for great washes and I've fewer than a hundred hours on them. They've hung unpowered and untouched for the past two years with the Covid-19 shutdown. Three of the six will no longer recognize the DMX signal coming from the console (they simply blink stupidly at me), and three continue to work well. I have tried re-patching, re-sequencing, switching terminator, switching DMX cables, re-addressing, etc. Any trick or method to "kickstart" those bad boys?