Web Events for Cam Pan v4 play audio only, no video in playback with Chrome

Weird. This is what I’m seeing for Cam Pan v4 in Web Events, FWIW:

OS Browser Sound Video Notes
Windows  Chrome 144.0.7559.60 thumbs-up thumbs-down video is all black/none; audio plays
Windows  Firefox 147.0.1 thumbs-down thumbs-down “Unable to load this Event” message
Ubuntu/GNOME  Chrome 144.0.7559.59 thumbs-up thumbs-down video is all black/none; audio plays
Ubuntu/GNOME  Firefox 147.0.1 thumbs-up thumbs-up video is herky-jerky; I blame my PC

This is with EFF Privacy Badger and uBlock Origin (uBlock Origin Lite for Chrome) running in all browsers.