Systems reporting mismatch

One system says “up to date” , the other says “haven’t seen in over a month” and lists unsynced items.

Is this normal?

From the screenshots it is hard to tell - I would assume these two devices are in fact NOT currently connected, for whatever reason.

If they do not know about the other device’s state, they will report to be “Up to Date”, as each device believes to have the latest data.

Now if you could show the “Remote Devices” pane on both devices, we could confirm that.

Next step would be to find out why they are not connected.

We can see the content and status of the “This Device” pane on one device, it would be interesting to see the same on the other device.

I assume the folders are set up correctly, and that this setup has worked in the past?!