1.67 loses previous settings
Upgraded to 1.67 and it loses the automatic fan setting I had.
Reverting to 1.66 brings them back.
Copy all json files
All I do for an upgrade is exit fanctrl and copy all files in the zip and overwrite the install directory so all the json files are intact from the previous version.
In 1.67 going to auto fan control there aren't the little dots next to the sensors that have been setup. So for some reason 1.67 isn't reading the json files it seems.
It seems that the internal data has been altered due to the LHM library update. You may either continue using the previous version or reconfigure the settings.