First, I've asked them to take a look at this thread so they can provide first hand information.
It would also appear logical to be a VSAN assignment, however, I configured all of the ports to be on the same VSAN as the rest of the ports in the switch before I left the company. so I know that is not what it is. In fact, I had attended training with my friend that has these switches before I left and I had asked the instructor at that time regarding this issue, and she didn't have any clues either. If memory serves me, she thought it was a BB credit issue. This has been over 6 months ago though, but I even recall out of servicing ports/disabling ports down to just a few thinking it might be a bandwidth issue.
I will let them know that they may need to go ahead and open a case (like I suggested before I left the company). If I find out the outcome, I will post it here.