Export taskt without one date to MS Project (PDF) doesn't render progress bar

Hi team,
I have a question about exporting tasks without one date (start or end date).
I noticed that when one task does not have a date (start or end date), the progress bar on the gantt axis is not rendered. Of course, when the task has both dates, everything looks ok
gantt-2024-12-19T11_33_19.PDF (159,1 KB)

Is this normal library behavior?

@akot

Could you please provide more details about the library you are using and the specific version? Additionally, are you using any specific code to perform the export to MS Project?

we are using aspose 23.2 version

Yes. The bars on the Gantt chart are aligned with task’s start and finish.
If one of the dates is missing, task bar cannot be placed on the Gantt chart.