Comparing word documents throws exception

Comparing word documents throws exception
document2.docx (12.0 KB)

document1.docx (11.9 KB)

 using (Comparer comparer = new Comparer("document1.docx"))
            {
                comparer.Add("document2.docx");
                comparer.Compare("result.docx");
            }

System.NullReferenceException
HResult=0x80004003
Message=Object reference not set to an instance of an object.
Source=Aspose.Email
StackTrace:
at #=zd5i4noQFy3unpAu23o$OrqdR_nIKieqjzQ==…ctor(#=zSz0uRDaiosONn4cslpSiAND6nIFe7yuFSQ== #=zWyUod9U=)

@tahir.manzoor

We cannot reproduce this issue at our end using latest API version, the provided code and .NET 4.7. Take a look at the output we got output.zip (9.8 KB).
Could you please specify your development environment details (e.g. OS name version, .NET version)?