Zigbee CentraLite dimmer switch pre/post connection to SmartThings hub

I’ve got a CentraLite zigbee dimmer switch, it’s model 3385001-ZHA. Prior to connection to the SmartThings hub, the physical buttons work fine. Once I’ve connected it via the SmartThings app, the physical buttons no longer work but the switch can be controlled via the SmartThings app. Is there something that I need to do in order to restore the physical buttons to working?