Yep, so my thought was that if the board was placed on an ESD bag while it was powered, the slight conductivity could have shorted some near-by pins on the back of the board.

Thanks for the reply! I had tested it with and without the SD card and had the same issue. The reseller happily processed an RMA and even offered advanced replacement. I got the new board wired up (double checking all my connector polarity) and things appear to be working great on the new board.