Spazzing lights
What are some causes of spazzing lights? I manage lights for a church (among other things) and this is the first time I've had lights spazzing out during a service. The lights in question are Laluce Natz 32RGBW pars. Until last week I had some generic single channels on a Chauvet DJ DMX pack and 4 units of DMX control for LED Strips (4 channels RGBW). The whole cabled signal flow is on physical 3-pin, XLR cables, I do not know if the cables are rated for DMX data or not. Before last sunday I had to pull the generic dimmers off of the DMX pack for a fire inspection and until we can have a proper solution they aren't going to plugged into the DJ unit. I currently have two Chauvet DJ packs plugged into the signal flow that don't have lights plugged into them. I know the DMX address are not the same, I just addressed them the other day. Now the flickering and lights color changes were happening during live music, I didn't see the lights consistently changing with the music/rhythm. I changed light preset and that didn't help. When the music stopped and we just had a speaker, the lights stopped spazzing.
Now I've tried introducing multiple mini DMX racks before and it caused similar issues, but I was hoping it was old packs, different brands or pre-owned. One of the two mini racks is brand new, just plugged in this last week with no lights plugged in but wasn't causing issues the first night it was plugged in. But today, the second time it was used in the current set-up, the pars started acting up, the LED strips were fine and it was only half the lights.
Any advice or things to try?