I just attempted to fly my Starling 2 Max for the first time. After arming I realized that only 3 of the 4 motors are spinning with motor 0 not operational. I've tried some of the voxl-esc commands (scan, detect, spin) and it seems to be picking up all 4 of the ESC's but motor 0 continues to remain dormant. I've also tried upgrading the firmware (voxl-esc upgrade_firmware) and upgrading the VOXL-SDK to the latest version (1.5.0) to no avail. Are there any other procedures I can take to fix this? Is it a faulty motor?

Thanks.