Upgrading hass core to 2026.02.02 broke all of my overviews and dashboards.

[quaint lily]

The suggested (required?) upgrade of Core from 2025.12.x to 2026.02.02 broke my default Overview page, replacing the hundreds of entities and dozens of sensors, rooms, etc. with 6 empty "postage stamps", which do nothing. All of the views of my data disappeared. The only way to get it all back, was to restore /var/lib/docker/ and /usr/share/hassio/ from my restic backup, overwriting the data on the server, and deleting any data not in the backup.

How can I retain my existing views, dashboards, overview pages, etc. and still upgrade to current?

[cloud cargo]

So to clarify, you're looking for the old autogenerated overview dashboard? Not something you composed yourself?

[quaint lily]

Yes, looks like this. Unless there's a newer/better way to represent these entities in a visible way. This page has about 45 sections with entities in each section.

[cloud cargo]

I think you can go to dashboards, add new, and select a "Overview (Legacy)" dashboard.

[quaint lily]

Let me try that, and if it fails, restore from back up... again.

OK, that sort of worked... and created a new sidebar item for it. But what do I do with this thing under the "normal" Overview menu item?

[cloud cargo]

You may hide it if you don't want it.

[quaint lily]

How do I get rid of this empty 'Overview' sidebar entry that appeared after the upgrade?

[cloud cargo]

I'm not familiar with what that is. Is it listed in your settings/dashboards table?

[quaint lily]

Found it... it was a static block of lovelace yaml in my configuration.yaml, but it only showed up in the sidebar after this upgrade to 2026.02.02