Gantt visual not showing more than one task that start at the same date

[ltbr1giordano]

I'm trying to display a gantt chart with several tasks from different projects. One of the columns from the data is the name of the project and it is used as legend.

Some tasks from different projects that have the same parent, task description and start date are not being correctly displayed. Only one of such tasks are showing while the others don't appear. Example:

Parent A
--> Task A from Project X starting at 10/01/2025
--> Task A from Project Y starting at 10/01/2025

In this example, the visual displays only the Task A from Project Y.

After changing one of the dates by 1 day (so that there were no equal start date), I'm able to see the visual working as expected. Example:

Parent A
--> Task A from Project X starting at 09/01/2025
--> Task A from Project Y starting at 10/01/2025

Currently I'm doing this as a workaround. However, I'm not sure if this behavior is expected or if it is indeed a bug to be fixed.

Att