MDM Trouble Report for 2021 Sep 05 Telescope: 2.4m Observer(s): Rupert (MDM) Instrument: OSMOS/B Problem(s) Encountered: Attempted to move the guide probe of the MIS to a guide star but got an error message in the MIS window that read: Communication problems with X and/or Y, check log When this happened, the Y box filled red and didn't move while the X value would move, but then the yellow box that appears next to the actual value when moving the probe remained yellow instead of changing green. When I checked the log it read: gy=0.000000 Sensor Fault, both limits asserted I listened to the MIS on one of these moves and it didn't sound unusual. Conferred with Eric about this and he seemed to think it was something to do with the Y stage/limit switch. ------------------------------ Submitted on 2021 Sep 6 [5:48:39]