My first thought would be that the
led pars are not in the correct mode IE: they are in a 6-channel mode which includes some
preset chases, instead of 4-channel R,G,B+Dimming.
Second thought would be that maybe an
xlr mic cable got mixed in with the 3-pin
dmx cable, using the wrong cable can cause some weird behavior like this.
Third thought is tricky... Do you have
house/work lights that can be controlled from a wall panel as well as the board? It seems like there is another device outputting
dmx signal into the
system that is mucking things up. Maybe, -after testing everything as Ron said- you can run a separate
home run from the LEDs and Movers to the board to bypass whatever is the problem... The lights on the
conventional dimmers don't randomly flash? Do the LEDs do this when moved to a different
address range?