Sorting bug with version 3.4.2.0

[vutrunghauut]

Explanation:

1. I have 2 tables:

• Main table: contains columns: Order No, Work Center No (neither of them is a unique value)
• Sub table: contains column: Order No, Work Center No (both of them are unique values)

2. I have connected both of them via Relationship 1 to many from Order No to Order No

3. When I used the Gantt 3.0.12.0, I could sort the tasks in ascending order with the option Sort Axis. But when updating to the Gantt 3.4.2.0, all the tasks will be automatically sorted by the start time, meaning that the task that starts first will show up first. It's not applicable for me because I need the task to comply with the alphabet sorting (available in the 3.0.12.0 version)

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This is version 3.0.12.0 on Power BI Desktop

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This is version 3.4.2.0 on Power BI Service

4. Now, the Power BI Service only allows to use of version 3.4.2.0. And I found that the issue came from the "Group task".

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When I did not choose "Group tasks", the sorting worked fine when sorted from A->Z for OperationDesNew

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But when I choose "Group tasks", the sorting by OperationDesNew (Tasks) will automatically ignore and be overlapped by the Sort A->Z for Start Time

Even Superuser in the fabric community also confirmed it's a bug.

Here is my conversation:
https://community.fabric.microsoft.com/t5/Desktop/Bug-in-sorting-Gantt-3-4-2-0-from-Microsoft/m-p/4871268#M1445200

Please help.