Matter over Thread - nodes have all disappeared about core

[home-assistant]

Hey there @home-assistant/matter, mind taking a look at this issue as it has been labeled with an integration (matter) you are listed as a code owner for? Thanks!

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[marcelveldt]

You have reinstalled the Matter server, meaning you threw away the entire Matter fabric.
Normally you do not have to do such a drastic step, cant you restore a backup ?

If not, the only way forward is either removing the HA fabric manually from each device and then re-pair or factory reset each device and then add to HA again.

As an advice I would suggest to start with adding the devices only to HA first (and not to Google) to see if that is stable.
Lots of first-gen Matter devices have major issues with "multi fabric".

[mcpaton]

I had this issue as well today. Restarted my NAS which houses the container that Matter Server is running in, and all my devices disappeared. I now have to re-pair them.

My container config looks like this:
Name: matter-server-1
ID: 2e53296935ed988af0fc711f53a3a264ac8a9dd70540280ca687f9d7a9894762
Image: ghcr.io/home-assistant-libs/python-matter-server:stable
Application: matter-server-1
Command:
--storage-path /data --paa-root-cert-dir /data/credentials
Entrypoint:
matter-server
Restart policy:
Unless Stopped

I have set Storage like this:
/AppData/Matter/Data, /run/dbus

Nothing seems to save in the Data folder I have set, so not sure if I am missing some persistant storage?

I tried stopping and starting the container after re-adding one node, and the node remained. but I haven;t restarted the whole NAS again.

Is there a way to export the node config and re-import it again if this recurrs?

My nodes were added to HA in the first instance.

[marcelveldt]

@mcpaton
The storage location is /data and not /Data

Going to close this issue report as things are working by design.