Protection lost on chart sheet when file saved in XLSX or XLSM

I’ve got a xlsx document with 2 sheets both have protection (password: test) and one of them is a chart.
When I save the file in xlsx or xlsm I lost the protection on the chart sheet (Graph).
Aspose.Cells.NET 24.9.0
In attachment the code and the document I’ve used for the test. there is also two capture to show how I’ve added the chart sheet and some capture of how I seen that the protection is missing.
element.zip (125.7 KB)

Thank you, best regards.

@ISIWARE,

Thanks for the template XLSX file.

After initial testing, I am able to reproduce the issue as you mentioned by using your template XLSX file. I found protection lost on chart sheet when file saved in XLSX or XLSM.

We require thorough evaluation of the issue. We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): CELLSNET-56881

You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.

@ISIWARE
We are pleased to inform you that your issue (Ticket ID: “CELLSNET-56881”) has been resolved. The fix/enhancement will be included in our upcoming release (Aspose.Cells v24.10) that we plan to release in the first half of October 2024. You will be notified when the next version is released.

The issues you have found earlier (filed as CELLSNET-56881) have been fixed in this update. This message was posted using Bugs notification tool by johnson.shi