OK I am running 5 NewPacs on a Gekkoscience hub with 8 amp barrel power plus cooling. I am having an issue with everything running great for a while and then randomly 1 or 2 of the NewPacs will shut themselves off and stay off. Any ideas on the cause? This set up ran great for 4 or 5 days straight then out of the blue this started. It is not always the same NewPac each time.