Starbucks was closed Tuesday afternoon for anti-bias training. Not every North Shore customer was happy about it.

LYNN — Starbucks Coffee Co. customers on the North Shore were disappointed Tuesday when they learned the cafes closed early. On the heels of an incident last month when two black men were arrested for sitting at a Philadelphia Starbucks without ordering, the Seattle company shuttered more than 8,000 of its U.S. stores at 2:30…