bsenthilbalu opened a new issue, #37569: URL: https://github.com/apache/superset/issues/37569
### Bug description In the legacy World Map visualization (@superset-ui/legacy-plugin-chart-world-map), hovering over a country correctly applies the hover highlight. However, on mouse-out, countries with 0 rows or no metric data remain colored and do NOT revert to the neutral background color. This creates a persistent “hover-stuck” effect, even though the user is no longer hovering the region. This behavior is consistent in both Explore mode and Dashboards. A related historical issue describes how the World Map plugin assigns incorrect fallback colors for missing/zero values, which aligns with this problem. Reference: “WorldMap coloring makes countries invisible” Other map color inconsistencies have also been reported. **Expected behavior** When the cursor leaves a country polygon, the fill color should reset to a neutral no‑data color. Regions with no metric values should not appear as if they are still highlighted. **Actual behavior** When hovering a country with no data, the highlight activates normally. On mouse-out, the country stays colored (usually teal or the palette’s assigned hue) instead of returning to a neutral shade. This makes it appear that the hover highlight remains active, even though the mouse is no longer over the region. **Steps to reproduce** Create a World Map chart using any dataset with multiple countries missing metric values (0 rows). In Customize → Color By, choose Country (or a palette where missing values still get a color). Hover over a country that has no metric data. Move the mouse away. Observe that the country remains colored rather than reverting to the no‑data background color. ### Screenshots/recordings <img width="1907" height="855" alt="Image" src="https://github.com/user-attachments/assets/44f61891-37be-4aae-a7fc-790e3c718107"; /> ### Superset version 5.0.0 ### Python version I don't know ### Node version I don't know ### Browser Chrome ### Additional context _No response_ ### Checklist - [x] I have searched Superset docs and Slack and didn't find a solution to my problem. - [x] I have searched the GitHub issue tracker and didn't find a similar bug report. - [ ] I have checked Superset's logs for errors and if I found a relevant Python stacktrace, I included it here as text in the "additional context" section. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
