Trying to change the "Temperature Offset" of the Xiaomi Temperature and Humidity Sensor

This thread is focused on the temperature offset for Xiaomi / Aqara sensors, not Iris v1 devices.

Hubitat includes drivers for Iris v1 devices in the hub firmware, so you should post about your troubles in this thread to have a much better chance of getting the Hubitat staff's attention:

You could also try contacting Hubitat support directly.