Users may have been unable to view chart data on Power BI dashboards when using standard light or dark themes

Title: Users may have been unable to view chart data on Power BI dashboards when using standard light or dark themes User impact: Users may have been unable to view chart data on Power BI dashboards when using standard light or dark themes. Final status: We've determined that a recent Power BI update introduced a code regression that caused dashboard theme settings to incorrectly override the visual formatting of some pinned Cartesian charts, resulting in incorrect chart rendering. We’ve completed deployment of the fix and confirmed that the affected functionality has been restored and impact is no longer occurring. Scope of impact: Impact was specific to any user attempting to view data on a Cartesian chart pinned to the Power BI dashboard with standard light theme or dark theme enabled. Start time: Sunday, September 27, 2026, at 1:10 PM UTC End time: Wednesday, October 14, 2026, at 12:00 AM UTC Root cause: A recent Power BI service update introduced a code regression that caused dashboard theme settings to incorrectly override the visual formatting of some pinned Cartesian charts, resulting in incorrect chart rendering. Next steps: - We’re reviewing our update procedures to help identify similar visual-rendering issues before deployment and prevent this problem from happening again. This is the final update for the event.

Title: Users may not see chart data when using standard light or dark themes on Power BI dashboards User impact: Users may not have seen chart data when using standard light or dark themes on Power BI dashboards. Current status: We've completed development of the fix, and we're initializing the deployment. We'll provide a timeline for remediation as one becomes available, and our investigation to confirm what's causing the persistent impact is ongoing. Scope of impact: This issue may have impacted any user who was attempting to view data on a cartesian chart pinned to the Power BI dashboard with standard light theme or dark theme enabled. This section may be updated as our investigation continues. Next update by: Wednesday, October 14, 2026, at 10:00 AM UTC

Title: Users may not see chart data when using standard light or dark themes on Power BI dashboards User impact: Users may not have seen chart data when using standard light or dark themes on Power BI dashboards. Current status: We've identified that impact communicated in PB1489649 persists. We're working on developing a new fix that we suspect will complete by Tuesday, October 13, 2026. At that time we'll also aim to provide details on the root cause into what caused the impact to persist. Scope of impact: This issue may have impacted any user who was attempting to view data on a cartesian chart pinned to the Power BI dashboard with standard light theme or dark theme enabled. This section may be updated as our investigation continues. Next update by: Tuesday, October 13, 2026, at 5:00 PM UTC