"Was hoping LL could explain why digEcor didn't get the same ADR message EDIG did."

I'm not LL, but my suspicion is perhaps digEcor petitioned the Court for ADR, believing that they will lose at trial.

If digEcor is asking the Court (or letting the Court know with that they are willing to try anything to stay out of going to trial), then they will not need to be notified.

all IMO...