why would one of the board members contacting your current command make your interview null and void? It doesn't strike me as an something that is as shifty as other disqualifying factor/screw ups (like releasing the board results to your buddies).
I agree, I don't think it makes sense. The way my recruiter explained it to me is that the interview board is supposed to make their recommendations based on my package (FitReps, LOR's, Awards, Education, Physical, etc...) and what information they glean from interviewing me, and nothing more.
I don't quite understand how the recruiter would have found out anyway. It just doesn't make sense to me but maybe there is some magic rule somewhere.
As for how the recruiter found out: The senior member of the interview board (a LCDR) found out, and told the CGAS CO. The CGAS CO talked to everyone involved, didn't think it was a big deal so he contacted the recruiter to let him know. After talking to the CGAS CO, my recruiter also didn't think it was a big deal, so he contacted CGRC to tell them. It was CGRC that said "No, he needs a new interview." At this point, if they want me to jump through burning hoops, I will...