Replace the batteries in the controllers with fresh ones.
Ensure there are no obstructions between the headset and the controllers.
Unpair and re-pair the controllers:
Go to Settings > Device > Controllers and click Forget. Pair the controllers again by holding the Menu button on the left controller and the Oculus button on the right controller for a few seconds.
Restart both the headset and controllers.
Controller Buttons Not Working
Solution:
Reboot the headset by holding the power button for 10 seconds.
Remove the batteries from the controllers, wait for 30 seconds, then reinsert them.
Ensure the firmware is updated by connecting your headset to Wi-Fi and checking for updates.