HomeKit Secure Video bug means thumbnails can show outdated views

An unknown number of users with HomeKit Secure Video cameras report that while live viewing works correctly, the thumbnail views are failing to refresh normally. Since late December, a growing number of users have been reporting the problem. It means that glancing at the Home app's cameras no longer necessarily shows the latest thumbnail grab from the video. Well damn. My HomeKit cameras are having issues again (but only in the HomeKit app). Their manufacturer app still works fine.- Thumbnail ke...