Sinope stats are great
The bug is on the Hubitat side, not the Stelpro. You can get around the bug by unsetting the lifeline association, i.e. remove the association to the Hubitat hub. The Thermostat will continue to work, though there will be a delay between the update of any local change made in the thermostat and when Hubitat will display the change.
The Hub polls the thermostat so updates will eventually be registered.