Seems like Hubitat Zigbee 3.0 connectivity issue - the device will stay connected to the hub for several seconds, and short after will leave the ZIgbee network.
This has been reported many times, but until now it affected mostly Tuya, Aqara, and other brands that are not officially supported by Hubitat.
If Inovelli fan switch issue reported recently is the same, I think that now there is a good chance this problem to be identified and fixed by Hubitat engineers. 
