Sonoff TRVZB datas are not cached

[ctolzane]

Hi, I recently added 1 Sonoff TRVZB in z2m. Pairing is Ok, parameters are regularly reported by the TRV and it's possible as well to update some of them. So integration is working well. However the TRV is not cached in the state.json file. All my other zigbee devices are. I know there are some cache options like cache_state_send_on_startup, cache_state, cache_state_persistent but all of them are set to false. Do I miss something?
Maybe a converter issue?

Thanks.