MacOS Tahoe’s FaceTime won’t connect to Mac mini’s 3rd party webcam

Since upgrading our Mac mini M4 to Tahoe OS, FaceTime won’t connect/display video from our external webcam device.

• Worked perfectly using same device on the same Mac mini with previous macOS Sequoia.
• Video works fine with macOS Tahoe using Apple QuickTime Player, Zoom, and Microsoft Teams.
• FaceTime will use the nearby iPhone’s video if linked, but on switching back, it goes to black again with the external webcam.
• Have disconnected/reconnected the device several times with no change.
• Have restarted or shut down the Mac mini several times with no change.

Just seems like an issue with this version of FaceTime on Tahoe. I’ve submitted a feedback report to Apple. Will update here if anything changes.