Style error in the replacement phase of the thick area

The attached document is transferred to the system. The tag “<DOC_ADI>” is selected as bold. The explanation text at the bottom of the same cell is not bold. When the document is converted to PDF with aspose and requested to be viewed, the tag “<DOC_ADI>” does not appear as bold.
Not: If all text in the cell is selected as bold, it is displayed without error.
I attached the original file and corrupted file. We are using Aspose.Cells.20.8 version. Thanks.
http://dm.bimser.com.tr/eba.net/Default.aspx?turl=P_21cA6yW0KsAghuBUGU0A

@srmbimser,

I simply converted your template Excel file to PDF file format via Aspose.Cells v20.8.4 (attached), it works fine. Also, see the output file (attached) for your reference.
Aspose.Cells20.8.4 For .Net4.0.Zip (5.4 MB)
Aspose.Cells20.8.4 For .Net2_AuthenticodeSigned.Zip (5.4 MB)

out1.pdf (210.8 KB)

Error persists, tested with version 22.6.

@srmbimser,

Could you please try our latest version/fix: Aspose.Cells for .NET 22.6.1 instead (Download | NuGet). If you still find the issue, kindly zip and attach your template Excel file and output PDF file by Aspose.Cells for .NET 22.6.1, we will check it soon.

PS. we could not download your sample files (you shared download link to the files in the first post of the thread), so you need to re-share the files again.