After spending a lot of time trying to find out why Sonoff TRVZB works with any other home automation hub (SmartThings, Z2M, etc,..), but not Hubitat - the reason was narrowed down to the HE hubs not responding to the Time cluster (0x000a) ReadAttributes (0x00) command :
Sonoff TRV can not sync its internal clock with the HE hub date and time and considers the pairing process incomplete.
This is how SmartThings V3 hub responds to the same command :
The same problem is observed with Namron (Sunricher) thermostat not syncing the date and time clock.
