@Toonbarmy2010 

Do you mean the faces that were previously marked as familiar are now being identified as unknown? And just to be clear, are all faces being detected as unknown, or is it most of them, meaning some familiar faces are still being recognized correctly?

This is an issue that requires the support team's analysis of your specific case before a proper suggestion or solution can be provided. I’d suggest contacting technical support team directly and providing as much relevant information as possible to assist with their investigation. For example:

1. The MAC addresses, hardware, and firmware version versions of both your camera and hub
2. Screenshots of the face recognition settings
3. Screenshot of the error pages