Need to debug Serial Proxy Packet error (described in issue).

[MarcoDotIO]

Current error:

Traceback (most recent call last):
  File "testingLand.py", line 41, in <module>
    ze_manager=RobotManager(port_list,settings_set)
  File "/home/marcodotio/mint-ws/mintpatch-controller-library/mintpatch/robotManager.py", line 42, in __init__
    a=PortManager(item,_setup_info[item])
  File "/home/marcodotio/mint-ws/mintpatch-controller-library/mintpatch/portManager.py", line 36, in __init__
    self.wrapper.get_feedback(self.servos[i])
  File "/home/marcodotio/mint-ws/mintpatch-controller-library/mintpatch/dynomix_driver/sdk_serial_wrapper.py", line 294, in get_feedback
    response = self.read(servo_id, DXL_GOAL_POSITION_L, 17)
  File "/home/marcodotio/mint-ws/mintpatch-controller-library/mintpatch/dynomix_driver/sdk_serial_wrapper.py", line 53, in read
    result = self.packet_handler.readTxRx(self.port_handler, servo_id, address, size)
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/dynamixel_sdk/protocol2_packet_handler.py", line 566, in readTxRx
    rxpacket, result, error = self.txRxPacket(port, txpacket)
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/dynamixel_sdk/protocol2_packet_handler.py", line 346, in txRxPacket
    rxpacket, result = self.rxPacket(port)
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/dynamixel_sdk/protocol2_packet_handler.py", line 257, in rxPacket
    rxpacket.extend(port.readPort(wait_length - rx_length))
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/dynamixel_sdk/port_handler.py", line 80, in readPort
    return [ord(ch) for ch in self.ser.read(length)]
  File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 495, in read
    raise SerialException('device reports readiness to read but returned no data (device disconnected or multiple access on port?)')
serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)

This issue happens regardless of what motor is plugged in, and it's a consistent error I have when running multiple times.