Enable consistent sorting behavior between Desktop and Service in Gantt visuals

It would be valuable to have consistent and controllable task sorting behavior in Gantt visuals across Power BI Desktop and Power BI Service, especially when hierarchical fields (such as parent/grouping fields) are used.

Visual: Gantt 3.4.5.0 by Microsoft (AppSource)

Currently, visuals may behave differently depending on whether a hierarchy is applied, and sorting can shift from expected alphabetical ordering to alternative criteria without a clear way to override this in the Service. 

• In Power BI Desktop, tasks grouped under a Parent field sort A→Z as expected.
• In Power BI Service, adding a Parent field causes tasks within each parent group to sort by Start Date instead, with no reliable way to enforce alphabetical order.

Suggested improvement:

It would be valuable if the Microsoft Gantt visual (and/or Service rendering) supported explicit, enforceable task sorting within 

parent groups that remain consistent between Desktop and Service. Specifically:

• Respect model-defined sorting metadata (e.g., Sort by Column) when a hierarchy/Parent is used
• Provide a Service-side override to choose task sort (e.g., Task Name A→Z) within each parent group
• Avoid defaulting to date-based ordering when Parent/grouping is present unless explicitly selected by the report author

It should

• Allow users to explicitly define and enforce sorting logic (e.g., alphabetical by task name) within grouped hierarchies
• Ensure that sorting configurations and metadata defined in the model or Desktop are consistently respected in the Service
• Provide a clear and accessible way to override default sort behavior within the Service UI for hierarchical visuals