While replacing a text, border lines are broken

I was trying to replace a text which has a border line at its bottom. Replacing the text is successful. But,
the border line is broken.

My Environment Details are
Windows 10 Enterprise 21H2 64 Bit
Intel® - Xenon® Gold 6254 CPU @ 3.10GHZ
Microsoft Visual Studio Professional 2022 Version 17.2.0
Dot Net 6.0
ASPOSE.PDF latest version 23.5.0

public static void FindAndReplace()
{
    dataDir = @"...\text\";
    Document pdfDocument = new Document(dataDir + "Towing.pdf");

    List<FindAndReplaceRequestObject> inputsList = new() {
            new FindAndReplaceRequestObject {searchText = "Gasoline", replacementText = "Electric"}, // input_1              
            new FindAndReplaceRequestObject {searchText = "de remorque", replacementText = "remorque"}, // input_2
        };

    foreach (var item in inputsList)
    {
        TextFragmentAbsorber textFragmentAbsorber = new TextFragmentAbsorber(item.searchText);
        pdfDocument.Pages.Accept(textFragmentAbsorber);
        TextFragmentCollection textFragmentCollection = textFragmentAbsorber.TextFragments;

        foreach (TextFragment textFragment in textFragmentCollection)
        {
            textFragment.Text = item.replacementText;
        }
    }

    pdfDocument.Save(dataDir + @"textreplaceoutputs\Towing_latest_Out_For.pdf");
}	
	
public class FindAndReplaceRequestObject
{
    public string searchText { get; set; }
    public string replacementText { get; set; }
}

Sample input and output files :
input_1.pdf (271.3 KB)
input_2.pdf (240.2 KB)
output_1.pdf (353.7 KB)
output_2.pdf (313.9 KB)

@PrabhuDevaGRR

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): PDFNET-54843

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.

@PrabhuDevaGRR

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): PDFNET-54844

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.