2019-12-30 17:49:00,948 - Recv: SD printing byte 29943/883716 2019-12-30 17:49:00,950 - Recv: ok N176 P0 B1 2019-12-30 17:49:01,294 - Send: N177 M27*23 2019-12-30 17:49:01,549 - Recv: SD printing byte 30924/883716 2019-12-30 17:49:01,552 - Recv: ok N177 P0 B1 2019-12-30 17:49:02,295 - Send: N178 M27*24 2019-12-30 17:49:02,605 - Unexpected error while reading serial port, please consult octoprint.log for details: SerialException: 'device reports readiness to read but returned no data (device disconnected or multiple access on port?)' @ comm.py:_readline:2793 2019-12-30 17:49:02,606 - Please see https://faq.octoprint.org/serialerror for possible reasons of this. 2019-12-30 17:49:02,610 - Changing monitoring state from "Printing from SD" to "Offline (Error: SerialException: 'device reports readiness to read but returned no data (device disconnected or multiple access on port?)' @ comm.py:_readline:2793)" 2019-12-30 17:49:02,629 - Connection closed, closing down monitor