Unable to run horizontal discovery on some linux machines due to a NaN value being passed to Linux/Unix Pre SensorDescriptionUnable to run horizontal discovery on some linux machines due to a NaN value being passed to Linux/Unix Pre SensorSteps to Reproduce 1) Run horizontal discovery on AIX ServerExpected: Successfully discover a linux serverObserved: Horizontal discovery fails with the error of << Running pre sensor script- Linux\Unix OS - Pre Sensor failed due to: TypeError: Cannot convert null to an object.. >>Workaround1. Go to "Linux\Unix OS - Pre Sensor" Pattern Pre Post https://<instance_name>.service-now.com/nav_to.do?uri=sa_pattern_prepost_script.do?sys_id=9517f98e4fe52200c7e881c18110c7e9 2. Change line 19 FROM: if(stdate){ TO: if(stdate && (stdate != 'NaN')){Related Problem: PRB1390666