Security Camera Previews showing on Iphone but not on Mac Home app

I am using macOS Sequoia 15.3.1; the issue seems to have appeared with Sequoia 15. My home kit cameras are functioning. On my Iphone, I can access them in the Home Ap, including seeing the most recent refreshing updates on the Home Home Screen or on the Home security screen. On my Mac Home Ap, the Home Screen and security screen both show the cameras as black boxes, no view, and not refreshed for 2 days, the last time I restarted everything trying to fix this. However, when I click on either camera, a fine live view comes up, along with the history of recordings to view. So there is no connection or camera issue with either the Max or Iphone or any camera. The issue is solely with the Mac Home app which is displaying the camera view when a camera is selected but is not displaying the updates or anything but a black boxes on its Home Screen or security screen.