We have received this question before and thought it was good to share:
When I add my Caseta dimmer to the Smart Bridge why does the Pico Remote no longer control my dimmer?
Currently, when a Caseta Dimmer or Switch, PD-6WCL / PD-3PCL / PD-5WS-DV, is added to a Smart Bridge the Pico Remote will no longer control the device.
To regain functionality of the Pico you must add the Pico into the Lutron App for Caseta Wireless. Once added into the Lutron App you can program the Pico to control your Caseta device again.