Add stamp to pdf is not working the second time

We are adding stamps to pdf. We are using fragments as “bookmarks” to locate the location of the stamp.
First time when we do it there is no issue. Stamp is added without a problem. We can add multiple stamps and they are all added without issue.

But as soon as we save the pdf document and load it again and try to add another stamp it doesn’t work. There is no stamp on the pdf.

This is an example of the code. In Data there is Podpis.pdf (original file for testing) and PodpisTest.pdf that is a result of the test.

We are using Aspose.Pdf version 23.6.0.0 for .NET Framework

Example: WeTransfer - Send Large Files & Share Photos Online - Up to 2GB Free

@Nejca

We are checking it and will get back to you shortly.

@Nejca

We are afraid that the link to the file has been expired. Would you kindly share it again? Also, please try to test the scenario with 24.5 version before sharing the sample project again.

It work on 24.5.

Thank you for your help.

@Nejca

It is nice to know that your issue has been resolved by using the latest version of the API. Please feel free to create a new topic in case you need any kind of assistance.