Keypad Base Station not chirping when motion detected

Hi, have ring alarm pro base station with keypad, and a ring floodlight plus. The base station will chirp when a door is opened, but it won't chirp when motion is detected? I have Motion Detected on, Motion Alerts on, Rich Notifications on, the floodlight is added to all modes, what am I missing?I can make it give a notification on my phone, but I really want a sound notification in my house if someone is approaching my backdoor...