Dual cameras on Creality Ender-3 v3 KE

[dlandfried]

Has anyone got dual cameras working on the KE? It looks like it tries to connect, but I don't get video. If I change the port to something other than 8081, then I get an error. The first camera works fine. This is my second camera in the moonraker.conf.
[webcam Bed]
location: Bed
enabled: True
icon: mdiRadiatorDisabled
service: mjpegstreamer
target_fps: 15
target_fps_idle: 5
stream_url: http://192.168.xxx.xxx:8081/?action=stream
snapshot_url: http://192.168.xxx.xxx:8081/?action=snapshot
flip_horizontal: False
flip_vertical: False
rotation: 0
aspect_ratio: 4:3

Getting the list of devices shows two usb cameras.