Brand New V5 motors will not function

I recently got my order for 20 V5 motors and attached 4 of them to the drive of my robot to test it out. When I turned on the robot, only 3 of the motors had the red led indicator on and responded to the microprocessor, the other 1 did not respond or even flashed the red led once. Upon seeing this we decided to test the rest of the 16 motors and found another 1 that did not show any signs of life. Is this a normal issue people are having? If so has there been any solution? We are a team from Puerto Rico who competes in a few weeks and shipping takes way too long.