Ct100 odd Humidity levels since moving to openHAB2

Seeing some very odd humidity numbers since moving to openHAB2.

rrd4j.log:2017-04-16 17:42:00.337 [RRD4jService              ] - Stored 'Avg_Humidity' with state '174' in rrd4j database
rrd4j.log:2017-04-16 17:42:00.340 [RRD4jService              ] - Stored 'First_Floor_Tstat_Humidity' with state '36' in rrd4j database
rrd4j.log:2017-04-16 17:42:00.340 [RRD4jService              ] - Stored 'Second_Floor_Tstat_Humidity' with state '205' in rrd4j database
rrd4j.log:2017-04-16 17:42:00.347 [RRD4jService              ] - Stored 'Master_Bedroom_Tstat_Humidity' with state '172' in rrd4j database
rrd4j.log:2017-04-16 17:42:00.348 [RRD4jService              ] - Stored 'Dad_Bedroom_Tstat_Humidity' with state '187' in rrd4j database
rrd4j.log:2017-04-16 17:42:00.361 [RRD4jService              ] - Stored 'Water_Room_Tstat_Humidity' with state '255' in rrd4j database
rrd4j.log:2017-04-16 17:42:00.364 [RRD4jService              ] - Stored 'Breezeway_Tstat_Humidity' with state '255' in rrd4j database
rrd4j.log:2017-04-16 17:42:00.377 [RRD4jService              ] - Stored 'Apartment_Tstat_Humidity' with state '138' in rrd4j database

.items

Group     Tstat10                                                                                                     (Thermostats)                           ["Thermostat"]
Group     Tstat10_Chart                                                                                               (Tstat10)
Number    Basement_Tstat_HeatSetPoint         "Basement Heat Setpoint [%.1f °F]"                      <temperature>   (Tstat10)                               ["TargetTemperature"]     {channel="zwave:rtc_ct100_00_000:controller:node4:thermostat_setpoint_heating"}
Number    Basement_Tstat_CoolSetPoint         "Basement Cool Setpoint [%.1f °F]"                      <temperature>   (Tstat10)                               ["TargetTemperature"]     {channel="zwave:rtc_ct100_00_000:controller:node4:thermostat_setpoint_cooling"}
Number    Basement_Tstat_Temperature          "Basement Temperature [%.1f °F]"                        <temperature>   (Tstat10_Chart, Room_Temperature)       ["CurrentTemperature"]    {channel="zwave:rtc_ct100_00_000:controller:node4:sensor_temperature"}
Number    Basement_Tstat_Humidity             "Basement Humidity [%.1f %%]"                           <humidity>      (Tstat10_Chart, Humidity)               ["CurrentHumidity"]       {channel="zwave:rtc_ct100_00_000:controller:node4:sensor_relhumidity2"}
Number    Basement_Tstat_OpMode               "Basement Mode"                                         <settings>      (Tstat10)                                                         {channel="zwave:rtc_ct100_00_000:controller:node4:thermostat_mode"}
Number    Basement_Tstat_ModeState            "Basement State [MAP(ct100.map):%s]"                    <settings>      (Tstat10)                                                         {channel="zwave:rtc_ct100_00_000:controller:node4:thermostat_state"}
Number    Basement_Tstat_Battery              "Basement Thermostat Battery [%d %%]"                   <battery>       (Tstat10, Battery)                                                {channel="zwave:rtc_ct100_00_000:controller:node4:battery-level"}
DateTime  Basement_Tstat_Clock    

My .things

Thing zwave:rtc_ct100_00_000:controller:node2 "Node 2: CT100 - Office" (zwave:serial_zstick:controller) [ node_id=2, refresh_interval=300 ] {
  Channels:
    Type sensor_temperature : sensor_temperature [ config_scale=1 ]
    Type thermostat_setpoint : thermostat_setpoint_cooling [ config_scale=1 ]
    Type thermostat_setpoint : thermostat_setpoint_heating [ config_scale=1 ]
}