if the temperature pulled down to a low level by AC, the baseline may fall fast and trigger low baseline reset. But if the temperature can be stable at the low level, rawcount and baseline should be similar and won't cause false trigger, unless there are more complex environment factor change.
Recommend to share with us the project and dynamic rawcount and baseline tuner data when the issue happened which will can help us to analyze it better.
If the project is customer confidential, suggest to create an SFDC case for further discussing and tracking.
No matter CapSense_CSD 3.x/4.x/5.x or CapSense_CSD 2.0, if IDAC auto-calibration is checked, IDAC will not be able to be changed by users.
In CapSense_CSD 2.0, unchecked Auto-calibration, you can tune IDAC at the place shown in the below picture.