dosubot[bot] commented on issue #38870: URL: https://github.com/apache/superset/issues/38870#issuecomment-4131861238
<!-- Answer --> Thanks for the detailed bug report! Both issues you're experiencing appear to be related to **known Mixed Chart dimension handling problems** that affect how series keys and dimension values are extracted. **For the "Drill to detail by undefined" issue:** This is likely related to [issue #35909](https://github.com/apache/superset/issues/35909), which documents that adding the `dimensions` field to Mixed Charts causes series key construction problems. There are also related issues with drill-to-detail column label mapping ([#34402](https://github.com/apache/superset/issues/34402), [#33907](https://github.com/apache/superset/issues/33907)) where dimension names aren't resolved correctly. **For the "Filter value list cannot be empty" cross-filter error:** [PR #30176](https://github.com/apache/superset/pull/30176) added logic to disable cross-filtering when no dimensions are configured, but your issue suggests the inverse problem—cross-filtering fails when dimensions ARE configured. A similar bug was reported for Bar Charts in [#37882](https://github.com/apache/superset/issues/37882) where cross-filters emit metric labels instead of dimension values. Your suspicion is correct—the display change from "Dimensions" to "Metrics, Dimensions" indicates the underlying data structure changed, and the code that extracts dimension values for drill/cross-filter operations may not be handling this correctly. I'd suggest linking this issue to [#35909](https://github.com/apache/superset/issues/35909) as a related regression. <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=brand-link).* --- <sup>How did I do? 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