Hello,
I recently updated to latest version and now none of my History graphs work in Lovelace UI. I only get the following message “History Integration disabled”. I tried the suggestions in one of the other discussions regarding deleting the home-assistant_v2.db file in config. I did that and restarted Host and core but neither fixed the problem. I tried making new graphs as well and those did not work either. Any suggestions on how to get History graphs working!
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Fixed by adding default_config: to configuration.yaml. Not sure how it got lost or why it worked fine earlier.
Thanks, this helped me go in the right direction. My setup doesn’t use default config, I use individual options in my config and history: was commented out for the longest time without issues. When I upgraded to 2021.6, I had a couple unexpected issues, including all my history graphs disappearing. Uncommenting #history: resolved this for me as well.