"Loading state history" for sensors on 0.106.0

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Hi folks

At some point in the last couple of versions/upgrades to HA, I have seemed to have lost state history for all of my sensors.

Clicking on any sensor, results in “Loading state history” as per below, which never changes.

Troubleshooting steps that I’ve tried:

  1. Clear all browser history/cache/cookies
  2. Delete HA database
  3. Restart HA (multiple times)
  4. Tried on different devices (same result).

State history was working fine on 0.105.x (can’t remember exact version) and seemed to have become broken in the upgrade.

Any ideas or suggestions please? TIA!

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