My Cameras have stopped recording motion but I can still view live. The previous recordings also appear corrupted

My HKSV has been working for years and all of a sudden the cameras have stopped recording but i can still stream and get notifications on my phone.

All of the cameras can be viewed on all Apple TVs but don’t pop up with notifications.

Is there any way to get them recording again?

I have 1 Aqara Doorbell, 1 Eve Outdoor Cam and 4 Eufy cams.

All was working until yesterday.

I’ve tried all sorts of things. Reset HomePod, remove my iCloud account from main hub (Apple TV), change from ‘Stream and Recording’ to ‘Stream’ and back.

Nothing seems to be working…..been at it for hours and still scratching my head