Welcome to the Hubitat Community!
If you can activate from the driver and they work, it's not a driver problem. Likely what you're already encountering is a Zigbee mesh problem. The bulbs will repeat for themselves fine, but they will cause the non-bulbs on the network to drop and not send data consistently. Keeping bulbs (other than Sengled) off your HE Zigbee network is recommended. Sengled bulbs don't even try to repeat Zigbee Signals, so as long as you have other mains powered Zigbee devices to repeat signals when you have Zigbee devices that are too far from the hub, the Sengled will not be a problem.
Do you have the OSRAM gateway? It's not a long term solution because OSRAM will be killing their servers, but for now it can work until we have a new solution or a second HE hub for bulbs, or replacement bulbs, etc.
