@Carl 

Thanks for the reply.

The 3 hardwired C720 and TC55s, are mounted outside. I have temporarily turned off the power to the TC55s to simplify my troubleshooting., so I am looking at just the C720 and the C120.

The C120 is located in a remote storage area inside.

All have "local recording" toggled on

When I can see the recordings, I can see the timelines, but since all recordings have disappeared, I have no timelines. However, when I select "playback/download", a timeline flashes momentarily before it displays "no recordings".

The local storage of the C720 SD card is showing 614.4 mb/ 13.80 gb, so plenty of room on the SD cards.

Because of snow setting off constant alerts, I have turned off motion detection and set them all for AI pets, people, and vehicles.

On the live screen there is a display: 01/36, which I interpret to mean that there have been 36 recordings. But when I advance it to anything beyond 1, it shows a plus sign in he middle of the sceen. If I select that, I get a screen labeled "Add Camera", and 2 images are displayed, 1 for the C120 and one ofr the C720, labeled "previewing" in shaded text.

I have turned off loop recording just to see if it helps-- Not.

Sorry for all the verbage here-- bottom line-- no recordings.

I can't think of anything else to tell you.

I am baffled-- Any more ideas?

Thanks

  @Navcadpilot59 

Carl,

I think that I may have figured this out.

I discovered a date just below the image screen in playback mode.

I can tap on the date and open a calendar where my saved files are.

Takes this 86 year old disabled Vietnam veteran a while to figure out this modern stuff!!

Thanks for your help.