This is one of those issues that, growing up with EDI packs, doesn't sound all that big of an issue and as Derek mentioned would normally be one of the first things I would check. I'm not belittling or make light of your post, I think it points out something that could happen to a lot of younger techs. In the OLD Days, you always had to go to
dimmer beach and either pull each dimmer out and shove it back in , or at least wiggle it to make sure it was seated properly. The old packs usually had brass pins , similar to the pins on a
stage plug, that were notorious for needing a good spreading and were constantly getting arc traced or corroded. I think a lot of us old timers would start at the dims first, wiggling each one to make sure the contact was good, and then proceed to data issues
etc.
Good Post!