Multicam buttons not switching cameras

Camera model
Pi Camera attached to OctoPi
Logitech C270 Via MotionEye
Generic Endoscope Via MotionEye

What is the problem?
Buttons appear in Control tab for each camera specified in Multicam setup with streaming URL or local pi streaming "/webcam/?action=stream"
the view in control tab does not change with button selection and does not correspond to the button pushed.
Only one of the cameras specified by streaming URL appears for all cameras. This is the camera I set up via Multicam and the view is live, the clock is running.

this setup HAS shown all 3 cameras in the past.
They stopped streaming, reporting not set up.
I uninstalled the Multicam cameras and reinstalled

What did you already try to solve it?
Updated Pi.
Checked and rechecked streaming URLs
uninstalled and reinstalled the cameras in Multicam
Added each camera with 4:3 and 16:9 settings
Tested the cameras in Webcam & timelapse section. All 3 work

Logs (/var/log/webcamd.log, syslog, dmesg, ... no logs, no support)
I'm not sure what logs I should attach.

Additional information about your setup (OctoPrint version, OctoPi version, ...)

Both OctoPi and MotionEye Pis are working ok.
both are on static IPs connected via ethernet
cameras work via web browsers or MotionEye server view.
I'm so close to having this working. Just vexed by this last bit of setup.

I may have solved this.
I Uninstalled/reinstalled Multicam plugin
Seems to be working.