I just spend 2 straight hours diagnosing weird flickering in my pixels while testing through xLights. I tried different speed settings, different power injection points, different cable connections, etc. After 2 hours, I see such a simple little annoying solution... Any guesses? LOR Comm Listener was running the entire time hidden in my Windows Tray and interfering with xLights. Close the dumb thing and what do you know, all works perfect! Aarrrgggggg! So frusterating, yet so simple!