Triggering in mid air, only when bed is hot.

[bombsquad85]

So i am loving this sensor, but after some testing and using it i run into an issue where when i go to print abs and have the bed preheated to 100C the sensor triggers in mid air. i have tried 2nd homing speed of 4 and 5. is there another thing i am missing?

sensor is the type m by the way.

9:28 PM warning: triggered in air, 737 9:28 PM G28 Z 9:28 PM Raw data:198 at 0 mm, BDsensor to bed: 0.7920 mm, Bed: 87.5C 9:28 PM G28 Z 9:28 PM Raw data:199 at 0 mm, BDsensor to bed: 0.7960 mm, Bed: 78.0C 9:27 PM G28 Z 9:27 PM Raw data:199 at 0 mm, BDsensor to bed: 0.7960 mm, Bed: 66.2C 9:27 PM G28 Z 9:27 PM Raw data:200 at 0 mm, BDsensor to bed: 0.8000 mm, Bed: 54.5C 9:27 PM SET_HEATER_TEMPERATURE HEATER=heater_bed TARGET=100 9:27 PM G28 Z