If index-pattern was recreated and its id hasn’t been customized to the same as it was before, you’ll get an error in all related visualizations.To fix this issue, you can update the index-pattern_id in the visualization JSON configuration.For individual visualizations, go to Dashboards Management -> Saved objects and update the id field.For multiple visualizations in a dashboard, export the dashboard, update the index-pattern_id in the exported JSON file, and import it back.