Just to add on here, @mbishop is talking about [RELEASE] Switch Bindings. You are doing Zigbee binding that is happening generally outside of Hubitat's control which is why the light state is not following the switch state. If you set up a one-way switch binding with the switch as the master, Hubitat will automatically update the light group to on/off as you press the switch. If you turn on the bulbs with other things beyond the switch, you would not want the Master switch, and instead, set up a two-way sync.
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