SL Departure Sensor : '<' not supported between instances of 'int' and 'NoneType'

[Joakim-T]

Keep getting this error every other refresh: Api result '<' not supported between instances of 'int' and 'NoneType'

Would say it happens 50% of the time.

Using SL Departure Sensor Sensor primary property: min Refresh: 300 Time: 20 Direction: 1