I had my roof LE give me problems last year. Turns out it was not the LE's fault. First it got too cold (hmm can a pcb get sick?, anyway). I added some c7 bulbs in the case to help keep it warmer. Second the last night of the show I lost control of the LE. Turns out the output of a SSR4-DMX got corrosion in it from the elements and the signal was not getting though to the LE. Have you recheck each LE for this season?
I still want to know if you are using LED lights with the LE or incandesce lights
v3 and v4 had issues with LED lights, reason why v5 has snubber resistors
Cheers
Rick R.