Jay-Z’s latest concert at Yankee Stadium hit setbacks after fans noted equipment glitches. The crowd lingered after their phones failed to sync . Some screens turned off mid-set. An actor stood in for Mary J. Blige after she faced an issue. Teyana Taylor stepped in later to assist. Blue Ivy Carter played piano for part of the show. Dame Dash then stated Jay-Z’s recent stadium gigs felt more like product demos than genuine concerts.