NullReferenceException occurs when save the doucument

Hello,
I use the follow code to save the document, and it happens a NullReferenceException exception:

Document doc = new Document(@"d:\a.doc");
doc.Save(@"d:\b.doc");

OR

Document doc = new Document(@"d:\a.doc");
using(Stream stream = File.Create(@"d:\b.doc"))
{
    DocSaveOptions options = new DocSaveOptions();
    options.TempFolder = "d:\\";
    doc.Save(stream, options);
}

The attachment is the document I used.
Is there anything wrong in my document?
Thanks!

Hello,
Thank you for your inquiry.
I managed to reproduce your probllemu on my side.
Once the problem is resolved, we will notify you immediately.

Hello,
I find that there’s a empty filed in the start of document, is the aspose don’t support the empty filed?
Thanks!

Hello,
Thank you for additional information.
Once developers will analyze the problem, we’ll be able to say what the reason. Merge felds supported, most likely reason is in something else.

Hello,
Is there any solution about this issue? Thanks!

Hello
Thanks for your inquiry. Unfortunately, the issue is still unresolved and currently I cannot provide you any reliable estimate regarding this issue. You will be notified as soon as it is fixed.
Best regards,

A fix for the issue(s) you’ve reported (filed as 27746) will be released in the next release at the end of this month. You will be notified.

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The issues you have found earlier (filed as WORDSNET-4822) have been fixed in this .NET update and in this Java update.

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